Most likeable is definitely Liam and Niall (not my fav) because Niall comes across as carefree doesn't get into any beefs with anybody and just laughs all the time plus he looks super young and innocent (which he's not)
Liam (fav) because he tries the hardest to communicate with fans and follow fans so he comes across as really grateful and humble and he's not cocky even though he's the 2nd most talented vocally.
Zayn and Louis (faves) are indeed the moodiest but Louis is the funniest and the leader behind the scenes and Zayn is just more reserved so he comes off looking disinterested where in reality he's just shyer than the others.
Harry.......................