Hmm, picking a favourite is hard! But Mythic Moon Studios' Maiden Voyage was one of the more well-polished entries with really great atmosphere and tactile controls.
Madz_3's TYP-ZER0 is fun, creative and criminally underrated atm! Give their game a look, rate and comment. They deserve it.
One more... this one is spooky, so be ready! It's Just Another Day Again from LucSar, you've been warned. It's an awesome, well-made horror game that builds upon itself surprisingly well given it was made in only a week.
There you are! Go let those awesome creative people know what you think.