This is my BFDI Contestant Tierlist with the original 66 contestants, no BFDI Mini, no BFDIE, no hosts, and no TPOT debuters. This is my opinion so please don't get mad.
I might as well tell my favourite contestant and least favourite. Starting with least favourite, it's Saw. She was a pretty ok contestant in BFB Pre-split, but when the EIGHT thing popped up to her, it just started getting more annoying every time it happened. With the added extra of the screeching voice when she says EIGHT, I couldn't put her any higher on my tierlist, giving her a F+ is the only kind thing I'll give her, however, when she loses that annoying voice, I might put her higher, but who knows. Now my favourite contestant, it was actually really close between Golfball and Pin, Golfball is a very good contestant and is a pretty funny contestant and shined in TPOT the most, I hope she wins. Meanwhile, Pin is also a very good contestant, mostly in BFDIA. She's had multiple funny moments in that series and her story was also really good with Coiny. However, she's toned down a bit in BFB and upward, but I still think she's a very good contestant. Overall, picking a #1 was challenging since both of them are really good and are some of BFDI's best, however, I thought of the best in modern style, and if that is to be true, Pin can't compete with Golfball. Pin has had a really good run all through out BFDI and is still a bit funny, however, Golfball is still a very good contestant, with very good development, very good relationships, and a great personality, S+ to Golfball as my #1 favourite contestant/character in BFDI history, well, only for the original 66 contestants.