MH vs MoD (in General)

Should I switch my MH to an MoD?

I'm not sure.... I could train VA maybe instead (not likely)

But more damage vs AS or life extension of leaching,,,

Oh, and yes, I know I need to seriously up my weapon regardless of what I choose.

Yes, MoD is awesome, and VA is totally worth it. More teams at/around the top use PL than DM, and seeing as how both of your sources of offensive damage are located on that minion, AS or not, you're gonna want to be regaining HP. With AS being the "flavor of the week", it is nice to have a weapon that smashes it ^_^