Kenan & Kel in a landslide here (only one E in Kenan, remember now). I remember Dinosaurs, and I remember it just creeping me the fuck out. I couldn't figure out why everyone else liked it, those dinosaurs looked like something Jack Ketchum came up with on an acid trip or something, so I really avoided that show mostly as a child.
Kenan & Kel I fucking LOVED though. One of my favorite shows as a kid with one of if not the greatest theme song in TV history. Seriously how can you not LOVE that theme song? If you don't start grooving you have no heart, soul, or rhythm baby.
I caught maybe ten or so episodes on syndication earlier this year (I think it was on the N or one of those other channels like that) and while it wasn't as awesome as I remember it being (that show must've had a budget of $3.50) it was still funny and entertaining. I love both Kenan and Kel, so it gets my vote here.
Oh, and did I mention fucking KEN FOREE plays Kenan's dad? I never noticed that as a kid, but when I realized that now I was fucking amazed. Ken Foree is a horror movie icon in case you didn't know, most notably from his role in Romero's original classic Dawn of the Dead. And he plays Kenan's dad. Yeah, vote for him. Now.