I've been using BA pretty exclusively since the demise of BD and I have to say its much better than it used to be - both as an airline in general and also as a FF. I've found the Reward Flight Saver redemption facilty to be fantastic, great availabilty and very cost effective use of avios. Also being based near EDI the option to collect *A miles is very limited, much easier to colelct avios with BA.
For the minimal amount of *A travel I will have I managed to get a Gold Status match on TK for 2 years. Not sure if I'll ever burn the miles - just need to wait and see how things pan out but having the status for travel is a real bonus when required.