My daily surf spot is a long-ish paddle out, sometimes with battling currents (choppy), and typically a mix of flat mush with really nice HH set waves. I weigh 190 lbs / 86 kg. Most people are on LBs, though not everyone and I prefer slightly shorter boards.
I have a 9'0 x 23.625 x 3.5 86L "Solitude" with low rocker, flat bottom, high volume square tail with heavier glass that was made for small mush. I don't like surfing this board in good HH+ waves, but due to the float and glide it's what I use as my DD.
My other board is 8'6 x 23.25 x 3.25 68L "Avis" and has more rocker, flat bottom, curvy outline, thinner rails and round pin tail with lighter glass and was made for drawing lines on decent waves. I absolutely love this board - it feels light and maneuverable and I feel like I can do everything on it, but it takes a bit of energy to keep it on plane so it's not the best on smaller days or in rougher water.
So I'm trying to decide between another 9'0 that's more of a HPLB, another 8'6 with more bulk, maybe straighter rails and concave for reduced drag and added lift. Waikikikichan suggested a swallow tail which is a cool idea, and made me start thinking about fishy hybrids.