Figure 8 is a very big knot and the tail will come out in the direction of the sheet. That could cause it to hang up on the rigging. If you are using two lines for the sheets, the bowline is going to be the best simple solution.
If you are using 1 line then a larks head will work on a small boat, , but I wouldn't use a larks head by itself on a big boat. The stress and potential to slip are a factor on big boats.
I think I needed to explain better. I am suggesting a single figure eight in a single piece of line. I think a single figure eight is less bulky than two bowlines. The fact that both tails come out in the same direction is what allows you to use this single knot. I just compared it to the bowline in case someone was concerned it would slip.
I just did a very unscientific test in 1/8 line. Creating a 2" loop: two bowlines took 19" of line. A single figure eight took 14 1/2".