Probably mentioned a few times here but here goes;

I have several miles in several programs. I'd like some feedback on what's my best options.

My programs are Aeroplan, Skymiles, Aadvantage and AE rewards miles.

I'm not sure AC is the best option anymore for travel. I've been flying Delta recently and as much as it's comfortable and nice service, their points structure is a bit of a shocker - on top of that, they'll be switching redemption amounts June 2014. I flew previously with AA because it was the cheapest in taxes / airport fees and I took advantage of some sweet bonuses in the past. Not amazingly comfortable in econo class. I just signed up for an AE card with some nice bonuses after a low spend. Anyone know where I should transfer to?

Should I leave them spread out like that? Consolidate somewhere? Swap from one program to an other?
(To use with partners?)

I often travel from YUL/BTV/PBG (ALB sometimes too) to Mainly FLL/MIA an at least once a year to France or Israel.

Much appreciated!

Phil