In North America the most "dived" brands are DUI, Bare, Whites, Dive Rite, Andy's... DUI is the favorite among tech divers based on reputation and quality - this is not to say that other brands cannot hold their own or that DUI is flawless.
Crushed or compressed neopren suits are heavier, dry very slow compared to a shell suit, and generally are a pain to deal with once you're out of the water. My main suit is a DUI CF200 and I'm always the last one to finish packing after the dive. While this suit is custom fit (It was DUI NE rep who took my measurements) I find it quite restrictive - I need lots of air in the suit to easily reach the valves, which implies I have to use a heavy back plate and in winter time additional weights to compensate for the added bulk in underwear - and I dive double HP 130 steel tanks. All in all, buoyancy flexibility considered, it's a lot worse than my backup suit which is a shell suit.
Supposedly the 1mm thicknes of the crushed neopren is more resitent to wear and abrasion - all I can say is that the harness webbing and the crotch strap have left marks on my suit, whereas my buddies diving shell suits have no such things. I know that springing a small leak will mean sending the suit to DUI for repairs - it's a lot more difficult to find a leak in a neoprene suit that it is in a shell suit. Good thing DUI has a 7 year warranty on their suits.
Another selling point for crushed/compressed neopren suits is their warmth - I live and dive in Canada most of the year (ice diving now) and while my dives this time of year don't last more than 50 minutes or so in 35 - 39F waters, I don't think I'm wearing less insulation than my buddies with shell suits. Summer time is hell and sweating in the suit becomes a problem since I have to rinse and dry it after a day of diving. Since the suit absorbs water like a sponge and becomes very heavy, hanging it out to dry is a major problem.
I'm getting a new shell suit and chances are that I will sell the CF200 - looks to me like a very expensive (~$3200 US) piece of kit which does not quite work for me.
Whites Fusion suits are getting good reviews, especially with the tech skin and they are in the ~$1400 ball park with very good fit and flexibility. Dive Rite's 905 suit is cave country (Florida) tough and well priced for what it delivers.
Any dry suit can and should be fitted with a pee-valve (overboard discharge valve) such that maintaining good hydration is not an issue.