Dang, I choose not to choose. Seriously, only pepper don't like in sauces is the orange hab. I was making some raised bed frames for radish, beets, lettuces, chard, onion, etc. couple years ago--I open-garden peppers, tomatoes, about everything else, and it hit me what an orange hab tastes like or after-taste of it: had screws in mouth while drill-driving (old stupid habit) and it was that metal taste, (even galvanized). Could just be my taste-buds but to each his/her own.
With that said, orange habs are easy to find in garden centers as plants in spring, if new to this, if can find no other, or not growing peppers, go with it to begin learning to use stuff in hab family; as somebody has said, so many are chinense fam: datil (looking forward to that one next year), fatalii, 7 pod/pot. And some love orange hab.
Depends upon the recipe. If making harissa, I like red poblanos (or any stage of ripeness works) with ripe anaheims, cherry bombs, mexibell, which always been hot for me, ripe jalapeno, as harissa is not supposed to be that hot.
I tend to favor yellow fatalii--still got that back of throat burn but for "all over mouth" experience, love 7 pot/pod yellow. And did one sauce with fatalii pineapple this year. Gonna do another with frozen 7 pots/pods and pineapple this winter. LOVE that one with fatalii applebutter (pretty much stolen from RocketMan but used already canned applebutter + already caned applesauce. (Visits to orchards in late August . . .hmm.)
Carib Reds (w/mango . . . mmm), Choc Hab, and tried a new one this year, St. Barts hab. That's a sneaky one on heat issue. It's nothing but nice fruity taste, initially, then builds. Shockingly, builds. It's wonderful with any tropical fruit, rum sauce.
Here is a thought: don't grow yellow bhuts next to yellow fatalii. Don't pick near dark either-- began a sauce once with about 12-15 yellow bhuts thinking they were fatalii. Yep. I caught the mistake before too much damage: scooped out, and "en fait le change" pdquick.