Man, I started out with two in mind, but things are a changing
Ain't that the truth.
I saw a set today of XT's(26" or larger) they are worth considering, the lugs are stiffer(compound) than the mud lites, so should provide better wear on hard pack while providing the same deep lug. AT's (25" or under) would be similar tread depth as the BC's, haven't seen them.
Good Luck!!
Edit: That would be the GBC Dirt Devil XT's I saw, sorry[&:]