I've been using Mother's (waxed twice so far) with very good results. Paint feels like the day I bought it. But, haven't used anything else so no real comparison but I have no complaints about Mother's.
My absolute favorite wax is PS21 Concours. Its a REAL carnuba wax (smells and feels like a big candle) and it really shines and leaves the finish ultra slippery. Gives great protection not just a another pretty face. I use this all the time on my Boxster. As for pre-washes, I've been using Sonax (German) but its out of stock for awhile and I am getting ready to try PS21's wash formula. For more info on these products or to order go to: www.carcareonline.com
BTW, I do not work for any of the above mentioned nor do I resell or receive any comps from any of them.
I have been using Mothers Wax - Phase 1,2 & 3 I love it... a dry terry cloth towel.. slides right off my hood! plus they got a good fine cut polish for removing blemishes and dead flies and all that junk that sticks to your bumper and nose.