I think Suunto is very innovative and certainly in touch with the current dive market. As they dont do clones like Pelagic and Seiko for example their line is clean and the brand well known and supported.
The various advantages / disadvantages are well discussed here, and as for them been "the best" - well, - I think we can all agree thats a sales pitch, but what we do know is they are well manufactured and generally good at what they do, they are well represented world wide if you travel, their replacement policy and back up is good and their dealer system sound - something you may not get with a clone computer from, say, one of the other manufacturers.
It boils down to personal preferance (as it dos in so many of lifes choices) but you could certainly do a lot worse than buying a Suunto.