Assuming that Sookie and Eric eventually hit the sheets again, do you think Eric's sexual behavior will be different since his memory has been restored?

May be. It depends on the situation I guess. I think he can be sometimes gentle and sometimes rough. I think the reason Eric didn't bite her during sex is because he was trying to show her that is not just her blood what he wants.
With or withou memory he loves her. So I think that in the future when they'll be back together (because they will) I think He'll bite only if she ask him to do that. He won't hurt her, ever.

Yes, I think it will be different. I think it's pretty much guaranteed Sookie and Eric will be together again.

For one, I think Eric will bite Sookie during sex when they finally do it together with him as himself. I think they are saving that, one because they wanted to wait until she was with the real Eric, and two because they wanted to show everyone (especially the haters) that Eric doesn't care about Sookie's blood. I think it will be even better when they come together again.

No...I think he has real amor for her...he fell in amor with her before they ever exchanged blood!!! He is a passionate lover and never bit her during sex...unlike Bill who bit her everytime..

YES!!!! But not like with Nora

No I don't, in my opinion Eric will be mais compassionate because he is in amor with Sookie and it showad in the season 4 finale when Sookie did not choose either one of them.

well... that's amnesia eric. when he lost his memory, sookie kind of taught him how to have feelings and be deep instead of shallow.
bill was always rough because that's just his style. bitting, thrusting, manhandling, etc. just doesn't seem like what sookie likes.
the REAL eric would probably be worse then bill. he's a freaking vampire viking! what was godric thinking when he brought him over. he's rough and tough and doesn't bow to anybody. he expects everything to come to him. he doesn't know remorse, love, passion, etc. he only knows eat, fuck, kill. (i wouldn't be surprised if he killed a girl while having sex because he was so rough)
but since eric had "amnesia", and he didn't know who he was, sookie took him in and taught him to love. once he actually knew what feelings were, he fell in amor with sookie and her kind ways. he didn't manhandle her in anyway or bit her with out her permission. he was gentle, passionate, and fully capable of remorse. he was the perfect match for her and it should have stayed that way.

but since eric got his memory back when sookie used her light on him, he remembered everything, including the time he spent with sookie. he remembered who he was and knew that having feelings wasn't his number one priority.
but lucky for sookie, he still loved her (and so did bill:(...) but i think she turned them both down because she knew she couldn't find amor in them anymore.
she loved amnesia eric because he was gentle and passionate and he just knew her. she loved bill because he brought her reassurance because she couldn't "hear" him.

but if eric and sookie eventually "hit the sheets", eric's sexual behavior would most likely take sookie por surprise. like i said in the beginning, he most likely will be mais intense than bill.