B Has some branches growing to the inside (between the 2 trunks) and also eye-poking, so I guess A is better, but it's too soon to tell.
Ignore the branches for now
The taller trunk is much thinner but I did not want to cut it because of its curve. So I had the idea of just making the thicker one shorter as if it were a larger trunk which fell down from wind and is now much shorter than its thinner counterpart.
From the photos...the larger trunk does appear thinner of the two. I feel this virtual Sorce did is BANG ON in a good direction. So many wish later they had did the harder cut backs...and I feel it's worth chewing over for awhile to decide if it lines up with your final direction you see for your material.