I find the G-GATx fleet to be past its sell by date. I have both easyJet Plus and a credit card that gives me PP Lounges as well as BA Gold so the experience on ground and in the air is pretty comparable as I am never in Club Europe from Gatwick. I have a slight preference for easyJet service and crew as it is much quicker onboard, as mentioned earlier, and I am usually sitting in 1D or 1F vs the exit row on BA.

I generally choose by schedule and typically easyjet has better choices for me.