Although many LASIK surgeons have switched to Femtosecond (Intralase) technology, the newest microkeratomes have reduced flap complications to equally low levels, the flaps are just as thick as predicted, and they achieve more than competitive visual results. I've had both in my practice , and I've returned my Intralase and now use exclusively the newest generation Moria OUP microkeratome.
One should remember that the flap is just the first step of the procedure, and far more important, the excimer laser used to reshape the cornea, is far more important. At the end of the day, shop for the surgeon who has the best reputation, experience and outcomes -- don't try to micromanage the details -- leave that to your LASIK surgeon.