So I was supporting Hillary from pretty early on. I fall into the camp that she had more substance, and that I'm a little leery of stylistic rhetoric, even if Obama's sounded so good. She frequently had more detailed answers to questions, and seemed to have done her homework. I also felt that Obama was overstating how different politics would be once he entered the white house.
For the record, as of today, I'm wishing that Hillary would concede the nomination to Barrack. It will take near total sweeps of the remaining states for her to catch up. I don't see that happening. I also don't see the super delegates giving their votes to the loser of the pledged delegate race - that would be tantamount to political suicide for the democratic party.
If she steps down now, she has the opportunity to be a gracious loser, and to help cement democratic support around Obama going into the general election. If she abstains from conceding, the party won't get that positive boost. While she wants to win, staying in this race can be interpreted as her valuing her own candidacy over a democratic win in november. It's an unfortunate side effect of what was originally positive - two candidates that were well accepted by their party, versus the republican nominee who isn't hugely supported. That's a tangible benefit, and to preserve, its time for the low-percentage candidate to step aside, if she is as committed to ending the Bush era as she claims to be. I no longer see her dogged determination as contributing anything positive - much as I don't see the value in Bush's steadfast commitment to an unethical war and total disregard of opposing viewpoints. Being committed is only valuable if you are pursuing a correct goal.
It has definitely been a very interesting primary for the democratic party, and pretty important. While I don't think republicans are feeling a lot of pressure right now, there is a palpable level of urgency on the democratic side. As a party, we need to be focused on hitting the reset button once the nominee is declared, and rally support.