If your sound had nothing to do with how many people were in your band, what would be your ideal amount? I'd probably say 4. Nice even number, great for hotels, restaurant booths, travelling, etc. Enough people to give you some variety in personalities, yet small enough to get to know everyone really well. Nice amount on stage too. Interestingly enough, my band currently has 4 members. Albeit, we are currently lead-singerlist, so, we are hoping to gladly be able to add a 5th member again.