DJCCGuy - If I were you I would keep with DJ (I assume your with DJ now), you have better job security, with MAM you are employed as a casual (yet guarenteed 85 flying hrs/month) yes there are allowances but from what I've heard your DJ allowances are alot better.
As for staff travel well that's non-existant. Staff travel is only offered to fulltimers are QF and their few and far between.
The only different could be better customers (being full service airline)... Yes your pay at MAM CAN be better than DJ at times but its not guarenteed and I've heard that it can be difficult to get finance as you're employed as a casual.
If i were you I would keep DJ for now... maybe look into Virgin Atlantic if you feel for a change.