Pavement only? And weight is a concern? Go MT! Otherwise I would say MAC
I have done A LOT of research on this very topic. Personally I am going with the 86" Mac (FOR MY NEEDS ONLY). If my needs were what your needs sound like, it would be the MT.
Check out this link:http://www.youtube.com/watch?v=Lumj1RV5gV8
Not that this means much because every TO and LNDing is different but, this at least gives you an idea of the of the very small difference. Weight for you on the nose is not necessarily a concern considering your load in back but...
If it looks smooth, it might be. If it looks rough, it is...www.bigtirepilot.com ...www.alaskaheliski.com