Storm and therm would be a nice combo as well.
Prolly thugs since their leadership will stack on each other
Basically anything thugs should work well if the players are decent. I'd have at least one therm or pain (or maybe dark) for AoE heals then maybe storm or poison for deb00fs. Hard to go wrong unless facing vast numbers or good anti-MM types.
Infinity and Victory mostly
dUmb, etc.
lolz PvP anymore, Market PvP for fun and profit
One definitely needs to be pain, which will provide both of them with great survivability. The second is preference. I'd suggest TA to keep people from getting away too easily. That's a MM's main weakness...it's simply too easy to completely avoid one in zone PvP. All you have to do is not engage them, and they have zero chance of killing you. TA can help with that.
Just for the heck of it, if two MM's were to roll together in RV, what would be the best set synergies to you? Depending if demon summoning is any good for pvp, this might change...
Thugs/Poison
Thugs/Pain
One strong debuffs, one strong heals/support, dual gang war...
Mace PPP for -fly/-jump and a powerboosted hold..
Ideas?