I think well cut pears and ovals would be very similar in appearance. I''d just choose based on which you think you''d be less likely to tire of over time. I think I''d personally love a pear pendant or right hand ring, but I''d probably choose the oval for an e-ring, between those two choices.
A well cut stone either way will sparkle beautifully.
have you ever considered having an oval stone set with pear side stones? Or the other way around?
If I were you, and undecided which shape I prefered, I would just go around to various jewelry stores and try on rings with the shapes I liked. This is one way to give you an idea of the shape and style ring you may want to go for eventually.
With me, I liked pears but ended up with a round. I plan to get a pear and set it into a pendant one of these days.