I saw both the original run with Jonathan Groff and again recently with Conrad Ricamora, who I thought did a fantastic job. I think he almost works a little better as Seymour since he's not as conventionally attractive as Jonathan Groff, and I really appreciated his chemistry with Chelsea Turbin who understudied Audrey. As for Audrey II, I think I preferred Kingsley Leggs a bit more as he just had a slightly deeper voice so he seemed more menacing, while Aaron Arnell Harrington who I think is slightly closer to a rock tenor, though I think he came off as more manipulative. Christian Borle really just stole the show both times though.