I'm ok with polymer. I like metal, too. Really depends on the intended application of the firearm.
I don't like strikers. I'm not saying they aren't good or don't work. Actually, given a good duty holster and minimal training. I think a poly/striker pistol is the superior choice for a LE or military sidearm. They're cheap to make, reliable and generally have a very basic manual of arms (hopefully shortens the learning curve).
I happen to like the FEEL of a nice action, not a "bang switch." Mainly though, I like to cover an external hammer with my thumb, while reholstering. I also prefer restrike capability (yes I'm well versed in "tap, rack, bang).