I started liking RS, but earlier this year I took to liking AT more -- as much as I like RS I think AT is the superior show. It's basically kid show awesomeness distilled, whereas RS is a little more subdued and thus probably wouldn't be appreciated by younger kids.

IMDB sums up my feelings: Regular Show's rating is 8.3/10 (i.e. "Great!"), whereas Adventure Time is 9.3/10 (i.e. "THIS IS THE BEST")

Yes yes, I must admit.
When I started watching Adventure Time I immediately fell in love with it.
The plot, the theme, the characters, everything was wonderfully done.
I didn't care so much about Regular Show at first, only after a few of my friends told me to watch it. When I did and I was totally hooked.
But now I'm kinda stuck between the two, and I can't help but love them both.
But Adventure Time, I admit has the higher rating when it comes down to it.
YesYes.-nod-

they're both fucking awesome. regular show is a bit formulatic but i like it more anyway because i'm one of those people who don't give up on their fandoms