For the record, I play ACOL with my partner but the question I am posing and the answers will probably apply to all natural systems. My LHO opens 1♦, partner doubles, RHO passes and I have two four card majors. Should I always bid ♥ or should I bid my better quality suit? To be clear, partner would usually overcall with 8-15 points and a 5 card major, and must have at least one 4 card major. Furthermore, she will trust me to bid at the two level with 8 points plus. So 90% of the time she will pass whatever my response is. I have seen some articles that suggest bidding the cheaper of two major suits but it makes no sense to me. True, if I have 8+ point and my partner has 16+ points and a good 6 card ♥ suit the bidding may go: (1♦) - X - (P) - 2♠ - (P) - 3♥, but we will normally make that contract anyway. Whatever suit I bid there is a risk that we will end up in a 4-3 fit and if so I would surely like it to be my strong suit no?