Your favourite level and Why? (out of plain curiousity)

I only recently kicked KS back up after a long absence. I didn't really give the game a proper go last time; I barely tried any custom levels but I'm making up for that now.

As for favourites, Colors and Marine at the moment, even though I've not finished the latter yet. Very much a personal opinion thing, since the biggest draw is that the difficulty in them is about perfectly matched to what I can manage without too much time endlessly respawning  That and the fact that they're both so polished.

I've also got a soft spot for both FMs since they're such good practice for me, though I've not made much headway (especially with the first...  )

i've even scoured the old forum (shhh) for levels that i missed the debut of...

I know I'm likely missing something really obvious but... where would I find the old forum? 

Go to the home page (click "home" on the home-help-search-profile-arcade-chat-logout bar) and replace forum with forum2.

Or just go to the home page and look at the top text, where it says something about the borked forum 

That was only added very recently. It's a great idea though.

Don't eat the mushroom by UncleSporky is a timeless classic and still not beaten as the most original level ever. It is genius troughtout the entire level and the many endings are just awesome which gives it a better replay-value than most levels.

If you want replay-value you should try Gaia.

Not everyone enjoys environmental levels though 

If you want replay-value you should try Gaia.

Never tried gaia before. I said it has better replay-value then most levels, not better replay-value then all levels. I would anyway play detm 100 times rather than gaia 100 times so I think detm have better.

Not everyone enjoys environmental levels though  

off course everyone enjoys environmental levels.

Knytt's Edge by 60FourMaster for the challenge (I must've failed a million times in that blasted infiltration level with the water platforming) and Gaia for the environment and the pure relaxing sense of exploration.

My favorite level is probably Knyzarro by Zaratustra. I love it because the tilesets are just awesome. Btw, the old link isnt here anymore. so...

Mine is so Don't eat the mushroom. It's pretty great.

I'd like to submit as one of my favorite levels, Sky Flower. It's way too short, though maybe that's the charm. It's a beautiful level.

I already posted here, but you're always trying new levels!
Escape from juni's room has a strange charm for me. If you were to look at it in a critical way, you would probably dislike it, but it's just charming to me. It's one of the few levels I like to replay. Maybe it's because it was my first third party KS level, but I just love it.

I'll update this post when I remember more levels.

The lava caverns is a fun little challenge that I also love to replay.

I find it completely impossible to narrow it down to one or even three or so. I think I might be able to narrow it down to something around ten levels, though. Don't have my list with me, though. But, would ten be okay?

Okay... in no particular order:

Caverns (bunnrey's, not any of the other levels of the same name)
Riku Island
Another Journey (yes, I prefer this to the famous Knytt on the Moon, if only by a small margin)
Temple of the Sun
Mashu Prapa
A Walk at Night
A Black Comedy
The Oubliette
Flipping Out
3 Square/4 Square/Logic/(Reason) - haven't actually finished the last one yet

Honorable mentions for levels I haven't finished yet but which I like a whole lot anyway:

Marine
LG-28

Honorable mentions for incomplete levels with a lot of promise:

Island of Mimir
Skyfalls
Homeland

Honorable mention for a level the look of which I love but which is far beyond my abilities:

Ascension

And there's a whole lot of levels which only very narrowly missed making it onto my shortlist.