Which suit is better: Alpinestars perforated GPU or Kobe Talon or Dainese Tobruk?

I can get
Alpinestars GPU 1 pc for $520 [1.2 to 1.4mm leather]
Kobe Talon 1 pc for $389 [1.5mm leather]
Dainese Tobruk 2pc suit for $550 [D-Stone nylon]

My priorities in order are:
comfortable fit (size48US, 6'2", 220lbs)
quality
durability
protection
good ventilation

80% of my riding is crouched down on curvy roads for hours at a time. I might go to a track someday.

I plan to use in summer (typically 75F to 85F here in Oregon), and i hate getting hot and sweaty. I figure if either leather suit is too hot, i can add some perforations myself.

How well does the Dainese D-Stone material compare to leather w.r.t. abrasion and "hotness"?

This would be my first suit, any other suggestions/guidance?

thanks

any suit under $1000 in my opinion is a piece of shit and cheap quality..
invest more $ for a better suit..unless you ass is only worth $500 then go for it..and while you at it get a $200 helmet..
it doesnt pay to be cheap when it comes to safety..my $1300 Dainese K series 1 piece saved my ass from alot of pain and road rash..my Arai helmet,Alpine SMX plus boats and gloves help a lil bit also :wink:
cheaper the suit the cheaper the quality..I seen these cheaper suits fall apart from a minor fall..

good advice from stunna, but not always do-able. a 500 dollar suit is FAR better then a pair of jeans and a wife beater. It's no 1500 dollar suit, no...but not everyone has that kinda cash at hand. Get whatever you can afford.
I'd go Dainese 1st, then Alpinestars, forget that other one, never heard anything about them. the GPU is an excellent entry level street suit from what i've been told by some track day/race instructors.