I've been looking at this today as well. First thought is that surely the qualification stages can't count in total runs? An Afghani could have 9 games as a runner up to an Aussie's 6 as winner? Can't see it anywhere though.
My overall bet I'm tempted with Pakistan @ 8/1. There's no way I'd be backing Australia on the sub-continent @ 3/1, that's just ridiculous & an over-reaction to the 'Aussies are back' brigade. They're in the harder group & it's quite possible they won't even get out of it! I mean West Indies & Australia, in Asia, with India & Pakistan in the same group. Lunacy.
Strict home advantage is irrelevant as Bangladesh won't win it, meaning the temptation is to go for Sri Lanka, India or Pakistan. The IPL does mean a lot more players are used to playing in these conditions, & that can't be discounted, but I'm not sure that India's bowling is as good as the other two's, although their batting is strong. For me it's a toss up between Sri Lanka & Pakistan, but I always feel impact cricketers can take the day in T20 & Pakistan have a lot of slow options & distance hitters. For that very reason West Indies can't be discounted but I'd want bigger, but Australia can be.
Regarding the runs, my working out is simple. If you assume that Bangladesh are the strongest qualifier & are going in the harder group, then it's a weaker qualifier going in the other one. That means that 3 of the 4 weakest bowling attacks in the competition after the group stages are in one group with NZ, England & that qualifier. I don't doubt that NZ can take an attack apart but it's the potential for them to go airborne I'm thinking of, & England only really have Morgan who looks to have the game on slow turners, but I like the idea of Corey Anderson but I don't think NZ will get far enough.
Therefore, with the chances of teeing off against 3 weaker attacks rather than a harder other group, for me it has to be a South African or a Sri Lankan, & being in bangladesh there's only one choice there. I like De Cock but he hasn't played much IPL which is important grounding for this. De Villiers, will he get enough crease time? For me it has to be Sangakkara or Dilshan, & I'm swaying big towards Dilshan @ 25/1.
Of the other short runners, far too short if you ask me, Gayles always got a shout & although he prefers pace he's happy enough facing spin, but will the WI's get far enough? 12's is short when he might well only play 4 games. Kohli is the leader of a number of Indians who could go well but I would much rather be on a far more certain qualifier from the other group. No brainer for me.
I wouldn't back an Aussie anyway as I'm not at all sure they'll qualify but Finch would be my preference. he hits straighter than Warner & will be less unsettled by facing slow straight up