My favourite sativa flavour was Tangerine Dream. Very energetic and such a nice high. Loved the flavour too.
If you're going for the high indica strains for that chilled couch lock feeling similar to Biscotti, I would recommend Ice Cream Cake, Strawberry Cheesecake or Skywalker OG.
He has a lot of Hybrids too and you really can't go wrong with any of them. The Thin Mint Cookies was so refreshing and tasted amazing!