Since sb pointed me to the contest thread, I figured I'd give them a playthrough and a vote while I was at it.
Single Player:
Waterfall Town Zone, Act 1 by Superusuario 2/10
I assume you are relatively new to mapping and level design in general, so I'll start with some basics. There is nothing wrong with the level technically speaking and it is obvious that you understand how to make levels, but there are many things design wise that honestly don't make this level very fun.
One main problem is that the level is far too open. Levels should contain obstacles and variety of terrain in both height and aesthetics. Your level was mostly flat, leaving me to merely right click to thok my way to the next point of interest. The other problem is that your only true point of interest, the last area with the towers and springs was far too simple to complete. Walking into two springs was the extent of all I had to do to complete the level. Difficulty and variety are the spice of life. I'm sure your next submission will be an improvement.
Poison Palace Zone by SonicMaster 7/10
I have to say that I'm impressed. Its not often you can see someone make a level path specifically for Tails and still have it be difficult. Despite the clear ripoffs of other levels and 1.1 you managed to roll them together and make the most challenging and fun for Tails level I've ever played.
If I'm going to complain about anything, it would stem from the amount of generic platforming and crusher traps that made up parts of the level. When you made floor to ceiling crushers that required me to spin-fly at the right time to get through, or those platforms with the ball spikes that forced me to regulate my flying perfectly were great, but the common spike and crusher traps that I could have passed just as easily as Sonic could have been avoided. Especially the initial gimmick with the waterfalls in the beginning could have been replaced with something that was more of a challenge, rather than right-click to fly.
After playing through the level as Sonic, it just seemed to me that the level was better suited for Tails in the first place. Not that the level's challenge was fundamentally bad for Sonic, it just almost felt like Tails' path was more suitable. I do wish more levels had some good Tails-specific stuff like this, it would give the other characters a lot more appeal.
Scrap Brain Zone, Act 3 by Glaber 0/10
Mazes still suck, even when in 2D mode, sorry. I wish I could say something more constructive, but a confusing maze-like level in a SP mode that is unpolished to start with just doesn't give me very much to talk about...
Match:
Combination Zone by Superusuario 1/10
Suffered from much of the same problems as your Single Player entry. Too large, too open, not enough obstacle.
Sky Island Zone by Roy Kirby 6/10
A solid map. What could have really have improved this map's flow was to have a physical connection from the lower center island to the other islands by something other than the elevator, or abusing the spring in the pond. The rest of the level meshed together quite well.
Moon Milkshake Zone by SonicMaster 1/10
Suffered from the same problem as superusario's maps. Huge size combined with low gravity made it a chore to find anyone, much less hit them.
Factory Zone by Chaos 3/10
The issue wasn't the fact that it had wide open spaces and narrow dangerous areas, it was the fact that they weren't in balance. In other words, your open areas were too big and your hazardous areas too small. Perhaps a reduction on some of the outside area and more connections to the inside factory would be in order.
Nightopeon Casino by Kuja 3/10
Too. Large.
The area outside the casino worked well and played well despite being rather large and flat. The casino area however, despite the fact that I could actually look at it with decent framerate, was just eye candy. The sheer size of the area made it difficult, if not impossible to score against anybody.
Awesome by Torgo 0/10
Yeah, I know its a joke map. It was moderately funny, but the novelty died as soon as the circle-strafe ring spam started.
Hidden Palace Zone by Knockout the Echidna 5/10
Center area was pretty good and well suited for match. However, the outside areas of your map mostly went completely unused. I would suggest focusing on improving your center and optimizing, or possibly doing away with the outside areas. If you could get a 32-man netgame going, this map would be of perfect size, but unfortunately, you just cannot put the whole map to use with 8 people.
Haiff Zone by DarkWarrior 0/10
Yeah, once again, I know its a joke map. But, once again, the humor wasn't enough to hold this up. HAI FF.
CTF:
Cylindrical Mine Zone by SonicMaster 5/10
Not bad. I do have the say the platforming in the middle was pretty interesting. Unfortunately, the water pits weren't so much. It would be nice if the floor was closer to the water's surface to promote more connectivity to the rest of the level.
Tubelectric Zone by Glaber 1/10
Didn't look anything or play anything like Tubelectric. Not to mention that several people in our netgame got stuck in the zoom tubes. Unforgiving cramped passages were difficult to navigate without getting shot at. Flag bases were too easy to camp. Please try again.
Circuit:
Los Pants Gehts Zone by SonicMaster 5/10
Not bad. I appreciated the platforming challenges offered by the oddly sized pits, but most of the netgame did not. I guess I just enjoy pain.
Medivo Circuit N Zone by Glaber 3/10
Meh. The map looked pretty good, but the gameplay was just another drillfest. Didn't really bring anything interesting to the table, despite being solidly done otherwise.
Overall:
Well, it was nice to get a dose of SRB2 after a long while and play through some new stuff. Its always good to get a few more decent maps around here. Netgame was a lot of fun, despite the lag.