I do freestyle Triple-X cross and Heise ending with insertion. The methods are incomparable because the pieces are sometimes better for one than another.
Combined Petrus (start), Heise (start & middle), Freestyle (ending), premoves (triggered anywhere), insertions (anywere) and LAMLLAAYC(SWS) is best.
I think we should call this the GFRS system (Goljan-Fredlund-Razoux Schultz)
Gus
PS. LAMLLAAYC(SWS) = Learn-as-many-LL-algs-as-you-can (start-with-shortest)