Ummm - a bunch.
Fons CQ-30 with SME 3009 Series II arm, Linn LP-12 with Grace 707, Magnepan Unitrac and Signet TK-50 arms, B&O 8002 (gorgeous table), VPI HW-19 Mk. III with Rega 250 arm(modded), VPI Scout with JMW-9 arm, VPI HW-19 Mk. IV with JMW-10.5, Zeta Black and Fidelity Research FR-64fx arms (still have), Denon DP-75 with Mission Mechanic arm (still have), and SOTA Sapphire with Sumiko MDC-800 (just got).
I liked them all but the last three are the best. And I HATE the unipivot arms - they all have uncontrollable azimuth variation which drives me nuts.