What's a better choice? Manley Steelhead Phono or Audio Research Reference 2SE Phono?

I would like your opinions and rational please.  I currently have the Manley BUT have an opportunity to pick up the AR

                           BTW I am a soundstage freak!  I would sacrifice for a holographic stage!

Gear I'm using:
Audio Research REF 5se Pre
Bryston 28b sst2 Amps
Thorens TD 125LB with Ortofon per Winfeld Ti and A95 Carts
Goldenear Reference Speakers...