Hi Scofieldkid,
Make sure you give them some time to break in before you form any opinions. I had mine for a little over a week before they sounded good and during that time I was thinking I'd made a big big mistake, but then all of the sudden, they became very musical. I can't pick a favorite between the LS50 and the P3ESR. I have both and can't bring myself to pick one over the other.
Also, in my room, the LS50's are very sensitive to vertical placement. Mine are set up with the tweeters exactly at ear level and that makes a big difference.