I really think that the blessings aren't going to really be significant in any way other than marginal boosts to things not related to combat or directly to your character's strengthI get it, they don't want me to invade Timmy's $25 plot of land and pillage his $10 Relic Shrine. I don't necessarily see that as a good thing, though.
If it's just a lobby where you safely build upon your e-peen, then make it that. If that's somewhere that's going to provide benefits to your campaign strength, then there should be some risk to it.
Just how I feel about it.
+5% to mining gains
+3% to skill gain for a particular tree
+20% to all money given to Valor
I can't forsee them giving boosts that directly impact PvP when they intentionally are forcing people to as close to an even start as possible.