Good on the Signature rings, only way to go. I have them on four rifles.
Having used both the dovetail and Weaver style, I'd stick to the Weaver. IMHO, more foolproof. Had the rear windage adjust screw come loose once.
That said...
Burris or Leupold single dovetail bases are a good choice. BIG advantage of the Signatures in this style: When adjusting the windage on the rear, loosen the cap screws on the front just enough to free up those bearings. This allows the scope to pivot laterally when adjusting, and thus prevents torquing the scope tube...or worse, actually bending it.
For the Weaver style, I prefer either the Weaver Grand Slam, or the Leupold equivalent, which are made of steel. They're stronger, look much better, and are easier to keep clean.
Weaver Steel...
And aluminum...
Weaver Grand Slam steel bases for Winchester...
http://swfa.com/Winchester-C2502.aspxLeupold equivalent...
http://swfa.com/Leupold-QRW-PRW-2-Piece-Base-P966.aspx