10man, missing buffs, having to run to people because of chains and them not being epic, blah blah blah. Considering the breakpoint for even ranking as combat is 116k on dogs on 10N, and 120k would put you mid-130s for rankings, there are some big differences to be seen, before considering gear. This isn't the LFR, or heroic, or anything like that. I was talking about pug runs, where the #2 DPS is probably 50k and the fight just doesn't end.
Although to clarify my point about combat (even with daggers): the top 10N assassination rogue is at 105.7k, and the lowest ranked combat rogue is 116k. I'll grant that there are MANY more rogues running combat, but I'm sure SOME don't want to switch specs and just run assassination for giggles.
The only "discussion" I saw regard MH is this:
If you can find discussion regarding MH weapons for combat, I'd be interested. It's hard for me to believe the difference would be marginal without seeing some math or logs.Always use a slow(2.6s speed) mainhand.