What I use:
Winter (conditions above 40 rare): the thinnest wool available, warmer for the weight, less funk, feels better, moving moisture fast less of a concern
Shoulder seasons (wide variety of temps/conditions): Capilene 2, widest temp range of any baselayer, fast drying, fastest wicking
Really darn hot: Capilene 1, fastest drying fabric I've found
There are exceptions, but this is generally what I wear. If you sweat a ton and hate having a soggy shirt, I'd strongly advise synthetics, or the lightest of wool layers. I've given up on anything but (in terms of wool) as I also sweat a fair bit and have no patience with slow drying stuff.