I tried 8 M's on the 9260-8i and throughput was ~2100MB/s, iops wise it didn't make any difference.
(I used the old firmware for the 9260-8i, the firmware dated oct-23 is clearly an improvement so iops wise it should be better than the old one)

Performance wise there is only one imho, the X25-E but it won't help much if the controller is holdning it down.
I've got 2 of them, one in a webserver and the other one is my boot drive.
The X25-E is an exceptional SSD, but I'll wait for the next generation (Lyndonville), it should be cheaper (per GB) and faster and will come in 100/200/400GB sizes.

The current Indilinx controller just isn't in the same league as the Intel controller, SandForce 1500 is looking like one to watch out for though.

@audienceofone
Hmmm, you've made me rethink my schedule
Your result is definitely an improvement, if it wasn't for the X25-E's you'd be on top of the list.