I started out with PLA and had no trouble with it whatsoever. I had a little trouble with the ABS when I switched over, but I figured out the problem and that's been pretty smooth ever since. My choice comes down to the properties I want the part to have.

I've removed the 3M tape from the build plate and replaced it with that old standby, blue painter's tape. My first print warped a bit on the bottom, but I didn't use glue stick or anything. It was a mechanical test print and the bottom didn't matter much, and it adhered well enough that it didn't screw up the whole print, so I was happy, but I'll use the glue stick next time.