None of the Trapinch/Digletts I've encountered have ever been worth a damn. Twice I've had someone try and trap my Steelix with Trapinch, only to be 2hko'd easily by my Steelix with EQ, while retaining about 45 % of it's health.
Also I just wanted to note some of my feelings about things that have been discussed as potential BLs. Spiritomb is not BL. I've found that many pokemon can easily 2Hko it with boosted attacks and that most of it's sets are rendered useless by the abundance of Taunt users out there. The WoW set is annoying, but it's nothing that can't be dealt with, while the Calm Mind set is really neutered by Crobat especially who is on 1/3 of everyone's teams and doesn't take much from unboosted Dark Pulses.
Abomasnow is a problem however. Personally I've done a lot of testing with a Rain team, and that's prevented me from having much trouble with hail teams, but it seems to me that you need weather to beat hail teams. I've definitely had issues when using non-weather teams against Hail teams. To me it really seems like you need opposing weather to beat hail, which in my eyes makes it centralizing enough to be deemed BL. I personally think that Abomasnow should be banned, but Snover left in for a month or so, to see if Hail is still centralizing. The only reason I think there is a chance that Snover will be deemed UU is because your essentially using five pokemon rather then six, because Snover is mainly cannon fodder. However if hail then proves to be to much for UU we'll have to ban Snover as well, but they should be given seperate testing periods.
Staraptor, Roserade, Gallade and Raikou are all heavy hitting top tier UU in my mind, they all have their weaknesses and all have decent checks with the possible exception of Staraptor, but I've found that the presence of so many other Staraptors and priority users really keeps it in check, without having to have a specific counter, such as Raikou is stopped by Steelix 90% of the time.
Shaymin has really annoyed the teams that I've used, but I'm still undecided about it. It's very bulky and the strong chance of Seed Flare getting the special defense drop are annoying, but which Registeel/Ice in the metagame I feel like it can be stoped. I'd like it in BL, but only because it annoys me, not because I'm convinced it's BL.
