Can someone recommend a good hotel in Seville?

Can someone recommend a good hotel in Seville, please?
Next Saturday is my girlfriend’s birthday and I plan to surprise her by going on a weekend trip to Seville, because I know how much she likes this city, and the weekend is all I can afford for now, because it is impossible to take days off. So, I do not have too much time to choose a perfect hotel. Help!

I can proudly recommend the greatest hotel I have ever stayed at. I don’t know if I just got lucky when it comes to the price, but I stayed in the Regina Hotel for les then 150 euros per day. Once you see it, you will know what I am talking about, and i am sure your girlfriend's gonna love it. I stayed there a week, and had not a single remark about anything. I still keep recommending it to my friends, and not one did come back disappointed or dissatisfied.