dry, is the best way to record in audition, or in any medium for that matter. record your vocals dry then use efx afterward to attain the sound you want. recording with efx is a bad idea if you don't know what you're doing, because if you record with too much reverb for example, there only way to take out some of the reverb is to re-record the part, and that is not always feasable. with that said, you're not going to post a thread and learn how to mix, mixing is an art, if you're not skilled in that art yet to get the sound you want, your best best to get that perfect and crispy sound, is to hire a good mix engineer. no one can tell you want efx to use, that's all up to you and it depends on what sound you're going for and what the mix needs. no one thread is going to be able to help you out on that. i'm sure someone will come in and recommend some books you can check out. but EQ, reverb, chorus, and compression are some of the plugins you can read up on in the help menu to get a better understanding of how you can apply them to your mix. hope that helps. i use Audition, and that help menu is pretty good at explaining things and how to use them. good luck.
LevLove