I haven't tried either of your recommendations but as someone who rides a similar style on the same boards and is in your weight class I can't say enough good about Now bindings. I rode Malavitas all last year and they were good, but the Now Drives I'm riding give me confidence and make me ride harder, faster, and longer. They're considerably stiffer than the Malavitas but feel much more supportive and responsive in all situations. I only prefer the softness of the Malavitas when I'm riding (read: learning) switch as they're a bit more forgiving when it comes to the imprecise movements and technique.
If you're worried they'll be too stiff and want an all-around try the IPO's from
Now. The only real difference between them and the Drive AFAIK
is in the taller/stiffer highback.