Just went to both CX F and BA F lounges at LHR T3 yesterday in the evening.

CX F: 3 curries (one was chicken but the chicken pieces were tiny), one soup, some simple salads (canned corn, shredded lettuce), 3 noodle options, two desserts.

BA F: very tender and juicy beef rib (with bone, as big as a plate!), 2 curries, tomato basil pasta, 5 good salad options (cous cous, farfalle, purple cabbage coleslaw), very good cold meats (juicy grilled chicken breast, big salmon steaks), one soup, two desserts.

Based on last night's comparison, I prefer the BA one for wider variety and better quality of food.