It depends on your baby acceptance but I wouldn’t advise to start on Hegen since it’s expensive. All bottles that you mentioned can be used with UV sterilisers (Teats at the bottom). TT - milk tends to get stuck at the ‘curve’. Hegen - milk don’t gets stuck but this bottle made me spilled my milk twice because the teat was off or the cap was slightly ‘popped up’. My favourite is still Avent natural else Pigeon.