I love Elixir strings. They are expensive, but they are totally worth it. Save a lot of money and time in the end. The only issue I have with them is they can be too bright sounding, especially on acoustic. They sound great on my Washburn acoustic (it's a dark sounding guitar), but that guitar is in my Father's possession back in Illinois. A bit too bright on my Breedlove, but they last so long.
I'd love to find a cheaper place to buy them. I was just looking to buy some in bulk last week, and didn't find any good deals.