I prefer 50mm objectives, and 30mm tubes. If cheekweld is a problem, add a riser.

You're talking about a $500-900 scope (depending on which you end up with), you can't really complain about adding $80 rings and a $30 cheekpiece.

Larger objectives and larger tubes mean better light transmission, less distortion/better resolution (generally), and wider field of view. All of these are benefits that I want in my scopes. The downside is that they come at a higher cost, more weight (negligible in my opinion), and may require a cheek riser. None of these are show-stoppers for me, so I'll benefit from the good, and won't really be effected by the bad.

Then again, this isn't the first time I've had a different opinion than most of the users here, don't get us started on scope magnification.