The PT focuses a lot more on individual relationships more so than the group dynamic (Anakin-Padme, Obi-Wan-Anakin). There's more investment in those types of intimate relationships. Lucas always has said he thought the OT was the most interesting part of the story. That's why he made SW first.
I'm not the type of fan that's all hyped up on the story as much as many are. At least when SW is concerned. I'm in love with the universe of SW. The storylines are what makes it more real.