I really like the rings Warne designed for the Tikka platform. I do not like the Maxima (vertically split) design. I think vertically split rings are dumb because I have to install a separate base. If I'm going through that trouble, I want rings I can remove from the mounts without having to take the scope out of the rings.... I'd rather run weaver!!
I have a few sets of Talleys (the 'one piece', not vertically split) for my tikka, the only problem I've had is with low 25mm rings - depending on the scope, the ocular housing may not clear the 'base'. Leupolds all seem to fit though.
The Warne design for tikka eliminates this possibility. I chose to scallop the talley base to resolve the issue, but if I were starting fresh I'd go with the Warne one piece (not maxima) for this reason.
It's problematic that Warne and Tikka both have multiple current designs, some very similar.
On open receivers (like a model 70 or 700) I have developed a preference for rails, or true one piece mounts (near alphahunter or DNZ). They guarantee alignment and simplify bedding (sometimes required to maintain that alignment under torque). However on a milled, flat top receiver like the Tikka (T3 I assume), I don't see a point. In that context I want the most direct, fewest parts connection between receiver and scope. Love some of the new receivers that are coming out with the integral rail.
Picatinny rails have been useful to me when sharing an optic between rifles, but it only works if all the rifles have rails..! Really nice for swapping optics in and out. I have used various styles - picatinny, weaver, proprietary 'QR' quick release. Levers, thumb screws, hexagonal bolts... By far my favorite rings of this type are made by Seekins. Vortex repackages them and markets the same product as 'vortex precision matched'. Great rings. Not only are they the lowest profile, Seekins (or perhaps NEAR) are manufactured to the tightest tolerances which makes them the most repeatable and reliable.
The other advantages are, you can pin a rail into the receiver (some come drilled, or you can drill yourself) and you can retorque it without taking the scope out of the rings. While most of the ring failures I have encountered have been rings themselves coming loose (Either the scope tube in a ring, or the ring to base connection), i wouldn't discount this type of maintenance under hard use.
Rails can also be of benifet if a canted base is required for shooting really far, or if you have a secondary/backup/supplemental optic.