As far as year models go, the 59, 63, and 64 are the most collectible. The 59 and 64 are tied for best shooting hunting bow Bear ever made, but the 63 dogleg is the most unique design.
With that said, I would dump the 59 and keep the 100#er
Keep in mind that we all have our preferences. The most important thing is waht fits YOUR preference best.
My preference models are the 64 and 63 in that order, for personal nostalgic reasons
Just my thoughts.