Had an A-bolt in 30-06 and it was an excellent rifle. I've handled the X-bolts and they seem nice, but have not had the chance to shoot one. For a hunting rifle, it would probably be fine. However, if you're looking to do more precise work at long range and shoot more than a few rounds at a time, you may want to look at something with a heavier barrel and better stock.This is something you'll have trouble finding for the Browning; aftermarket support. That is, if it is something you may be considering in the future. But, if hunting is your primary use and weight is a consideration, I can understand.
I'll give a big +1 to Savage and Tikka T3 rifles, as well. I own/have shot many of both. I think the Savage rifles probably have the best out of the box accuracy and options, for the price. Tikka is just as accurate and the 60 degree bolt throw is just plain awesome. The action is probably the smoothest/fastest around. In terms of aftermarket support, both are gaining popularity. The Remington 700 is still king in that department, however (and I have nothing against them, either).
I think what it boils down to, is what your primary use will be. Same for caliber. For volume shooting, I would go with one of the mainstream calibers, for cost consideration, as well as variety of bullets available for different needs. But, if only hunting, 7WSM would be a good choice.
John (Shameless Savage Fanboy)
Milprileb: I also think Hooters has better burgers than Wendys. Hooters puts more technology into the burger and it shows when its served.