I love my Razer Deathadder, except for the nasty gloss on the sides that gets gross quickly.
It's great for palm grip, good for fingertip, not great for claw.
the newer deathadders have rubber sidegrips, though :-)
i have two older DA models with glossy sides and agree that they're not very nice. I would've preferred some kind of matte or rubberized coating.
with the DA, the most comfortable grip for me is a combination of claw + palm. i don't palm it very comfortably because the center part is raised up too high for my index finger.
the bigger issue for me however is that i can't really lift the thing unless i squeeze it tightly. even though it's supposed to be a "gamer mouse", it's probably my least favorite choice for FPS games because of this.
i'm not really a fan of M1 and M2 either, to be honest. the way those "trenches" more or less force you to put your fingers there..
well, maybe my hands are just too small for this mouse.. :-D
anyway, definitely not my first suggestion for something fingertippy..