Sounds to me like Marit Lage and Lands is your most common opponent. I know that feeling, I have the same paranoia with Miracles to a degree.

I've never heard of being able to kill creatures as being a disadvantage.

Is you're maindeck designed to fight Lands as a strong game 1 or is your sideboard designed to cover it? I always fashion the main deck to deal with 'every scenario' possible to the best of my ability and then use the sideboard for those nightmare matchups where losing is too lopsided.

On a very high note, I may be getting Tabernacle of Pendrall Vale for my deck and coupled with Wasteland/Sinkhole, and the terror inducing Nether Void, my "Fortress of Solitude" Pox is just about complete...