I would not go for something that advertises itself as easy to clip out off!!!! As my problem is just that. I want something that doesn't let me pull my foot out that easily. I am well used to having to flick my ankle out to unclip, it is second nature, so don't want anything easy please!!!
Keo carbon 2 max is what I am looking at... which is the top model, just below the blade, which I think is a little over the top for me... You can set the tension on them too, so I can set them to tightest for the track and less tight for the road, in case I need an emergency unclip... Found them for £80 a pair... so not bad.