Down to 3 choices - opinions requested

I've narrowed my choices for a preamp down to three. Help me decide by ranking them for me. The choices are as follows:

Audio Mirror T-61
Eastern Electric Minimax
Sonic Frontiers SFL-1

The rest of my set-up is:

Innersound ISIS Hybrid Electrostatic Speakers (bi-amped)
REL Strata III Subwoofer
Shanling T-100 CDP
Sonic Frontiers Power 2 amp for panels
Adcom GFA 5800 amp for woofers