sWe

I generally prefer Sigma to Rubi, but I always prefer Montolit to Sigma. Havn't had a chance to try the Tx900 yet, but I'd pick the TX over any Sigma for really large tiles because of the breaker. I'd probably pick the Montolit 93P2 over the Rubi TX900 though.

My current main cutter is a Montolit 63P2 btw. My old main was a Sigma 5-S.

sWe's compilation of guides to tiling

sWe's materials calculation spreadsheet