I would either stick with: OEM, ferodo ds2500 or similar or just go for an appropriate big brake kit.
EBC employ all these green stuff, red stuff, yellow stuff for seemingly different markets - it's all marketing I'm afraid because whilst they appear to cater for different uses from fast road, track etc it does none of these well. Whether your concerned with longetivity, stopping power, consistency or noise.
My personal experience of them (not on my car but on other cars I've driven before and after fitting) is that they squeal quite a bit when cold as they aren't up to optimum operating temperature, this experience reflects their entire range I've experienced thus far; it takes too long to get up to operating temperature to be what I would deem 'safe' for road use, given the lack of force needed for day-to-day driving. When you do get them up to temperature I'm not sure they are much better than genuine OEM...
Only benefit so far as I can see was that they did produce less brake dust as others have pointed out - which I might add is a characteristic of most good aftermarket brake pads anyway, so nothing special there.
I only just read that it's your rear pads your looking to change, I definitely echo what Wayne has already suggested.