I use a DiveRite 905 suit. It's awesome in every way. No sewn seams at all. It's a trilaminate type shell suit. The inner layer is butul rubber and then the seams are RF welded so the suit is actually one solid piece of rubber.
It's got very heavy duty latex wrist and neck seals, a warm neck collar that you tuck your hood in to, two thigh pockets, one is permanent and one removable.
Very nice boots that are very slim and fit most fins well. Internal suspenders, a must have. SiTech inlet and automatic exhaust valves.
This suit is perfect in every way.
The rear entry is so easy to get in and out of and to be honest for you solo divers (gasp!) I can open and close the zip by myself so that's not a problem.
My vote is for the 905 by DiveRite! And there's more: comes with an inflator hose with a very easy to use quick disconnect, zipper lube, a talc bag, complete field repair kit with glue and patches and a very good manual all in a nice convienient plastic box. Oh yeah and a nice storage bag and did I mention it was under a Grand? Yeah it was $995 out the door at my LDS (local dive shop).