I believe they both love Bella fervently. However having said that, the love that Edward has for her is more profound. He evens describes it as being close to imprinting. Which is what Jacob faces later on which someone else. (Sorry to those who haven't read breaking dawn) Therefore its impossible for Jacob to love Bella more than Edward.
I think edward does love her more even though they both love her alot.But I think that since edward has been living for more than a 100 years and he never fell in love intill he met bella,and he dicided to get married and live with her forever he must really love her.Also he left to like protect her even though he really loved her.And I mean jacob imprints and he didn't imprint on bella so it wasn't the person for him.So yea Edward:)
before jake imprints i think that he did love her and would do anything 4 her but as edward did say jake might imprint someday (as he does with bellas daughter!!!) and he might break her heart so i think that its not so much that edward loves her more just that he would never have 2 put her through that.
