I work in several different media of paint. It really depends on what is the best method for each custom. Some, like Naked Robin, will only have a hand-mixed brush-on acrylic.
Others, like Disco Link, might require three different types of paint to get the results I want.
Link utilized two different spray-paints for the shirt and pants. It just so happened that both of them were available from Krylon, but I would have used whatever brand had the color that I needed.
http://threads.rebelscum.com/imagep...hp?file=168745&imagewidth=756&imageheight=542
The shirt was a gloss Peekaboo Blue and the jeans were a satin Oxford Blue.
The shoes were another color of spray-paint; I want to say it was the same Krylon semi-gloss white that I'd used for my reproduction white tux Rowlf.
http://threads.rebelscum.com/imagep...hp?file=164720&imagewidth=294&imageheight=493
(The scarf/cravat/ascot was sculpted separately in a white Bend-and-Bake version of Sculpey, and required no painting. It would be glued back on after all the painting was done.)
Then his chest, forearms, and belt were all brushed-on acrylic. The fleshtones were right out of the bottle (FolkArt 949 Skintone is a great match for Link and Strangepork) but the belt was hand-mixed.
Then his belt buckle and his bracelet were painted using metallic Testors model kit paints, which are more like an oil-based paint. A completely different animal from the water-soluble acrylics. Even cleaning the brushes is a whole other technique for those, requiring a more noisome solvent.
And Link was pretty straight-forward. I didn't use any painting effect techniques for him, but I generally like to do a faint drybrush in a lighter color to make the sculpts 'pop' better, as illustrated in this photo of my custom Kermit as Alan Grant figure (left):
http://threads.rebelscum.com/imagep...hp?file=137714&imagewidth=569&imageheight=586
So, the complicated answer is... I use lots of types of paints and lots of methods.
The simple answer is... whatever works!
DN