*blegh* -_-
Busy today. This is just going to be a quick one.
So, it turns out that I'm not the only person on the comic study/review thing.
Me forgetting the largest one, www.comixpedia.com, was just me being brain-dead. Man those guys do a lot of crap.
These Guys have also done some crossovers, basically they just set the two artists up and let 'em go. I really like crossovers in general because they tend to take advantage of the things you enjoy most out of both comics.
That said, it's kind of hard to find a crossover you're going to like for that very reason. You need to find one that both of the comics involved are ones that you enjoy. Like, remember awihle back when all the newspaper comics traded comics on April fools day that once?
I did not like one out of the bunch. Dilbert and Family Circus - Is there anyone on the face of the planet that genuinely enjoys both of them? I'm a dilbert person, you might be a family circus person, neither one of us are going to enjoy a crossover.

So - super-ultimate-coolness, but only about 1/3 of the time.
That's my take on crossovers.