When I got back into the hobby I went all out on Acrylics. I used to do enamels, but based on a few things I decided to go Acrylic this time around and I am not sorry at all.
They dry faster. When airbrushing it dries almost instantly... prevents dust
easy clean up... water or windex
slight smell.. nothing like enamels which is crazy
I can use water to clean my brushes... which is where i generally use most of the thinner. its great to be able to dump out dirty brush cleaner and get new stuff from the faucet.
I do have a few cans of enamels though.. so i use them for primer on models. It has a nice bite to it and its great for priming.