Yes, it's a very subjective question - I say 1st: determine your budget, then 2nd: list your 'must have features' (i.e. large harp space, auto thread cutter, auto needle threader, certain stitches, etc..) and then test drive all of the machines in your price range that meet your budget and must-have needs and you'll discover the brand/model that feels right to you.
Take your time and enjoy the process - good luck!
Christine