Do NOT buy the ones that bolt onto the hinge of your windshield. I had those, it wouldn't stay on. Didn't even last half a day. Stick with the ones that go into the door hinge if you can find a set with good reviews. I just go mirror-less.
Do you have a Tazer installed? If not I highly recommend one.
One of the many awesome Tazer settings is the ability to have the backup camera turn on when you use your turn signal. This works great as the backup camera is more of a wide angle.
Because of this, I never opted/needed to get side mirrors.
I have the Quadratec round ones. They work good enough. Wife wants tube doors eventually so i didn't want to spend a lot on mirrors i would replace anyway.