Ok, so I here all good things said about using acrylics. I tried them and found the paint rub was horrible and not just at the joints. Even after a week of drying, I was afraid to touch the figure at all because the paint just didn't hold up. I had a large supply of enamels so I tried those and have been using them ever since.
As for my experiences with using enamels, I have had good results thus far. There were a few stumbling blocks at first though. On the 85-94 figures/parts that I painted, I haven't had any real issues save for the paint going on too thin one some. Now, figures from more recent years; ARAH re-releases from the VvV line and such, I have ran into the paint not wanting to dry quickly. This has happened only a couple of times though.
I then discovered this rather handy Rustoleum spray paint. I started using it on vehicles but then decided to use it as a basecoat on my figures. The results are remarkable. Sometimes it takes a single coat while other times it may take two. After that, the enamels go on quite well and dry quickly even on the newer/softer o-ring figures.
So I guess I am left with a few questions. Has anyone had good experiences using enamels or are acrylics still the primary paint used by those of you who paint your figures? Is the tendency to shy away from enamels based mainly on the supposed drying time? The clean-up? Negative effects on figures? I haven't had much issue with any of this but I am just curious as to whether or not others have.