HI Mcdoc -- welcome to Scubaboard!
Unfortunately, your question is nearly unanswerable. What works for me may very well not work for you. 'Most comfortable' means you will have to visit a dealer and actually try the suit in question on for fit and function. If there was any single, simple answer, it would be the brand everybody wears.
Price and quality...there's a reason some suits cost a lot more than others, and given the size of the market, it's likely that you'll get what you pay for. Cost is the least important factor, IMHO...saving a hundred or two is a bad trade for a suit that doesn't last, doesn't fit, or doesn't have the features you need.
Durability: You are aware that simple water pressure while diving will wear a wetsuit out over time? Better [ie. more costly] suits stand up to this sort of wear better. Personally, I wouldn't wear a good diving wetsuit for surfing...I'd get a cheap one for playing on the surface.
Okay, having said all that...I found a Bare Velocity 3mm at an LDS that fit me perfectly. I could have spent less and gotten less too. Given that I'll be doing only a week or two of warm-water diving a year, it may last me a decade or longer. Bare is a good brand by all accounts, and as long as their sizes fit my body, I'll be a fan.
I suggest you do lots of shopping, and reading here to get a variety of opinions and experiences with various brands.