Please act on the advice of everyone here - your wasting the points on BA. When I got hooked onto FlyerTalk a while ago it took me a while to act on the advice and I regret it now.
You could be an EP, 1K or similar in AA, US, etc. If you do biz class travel and get gold on BA it has its own advantages but otherwise, for economy travel stick to AA, UA, AC, etc.