Go-to Figure model?  For me personally, if I use a figure I go for the custom variety, Make Human mostly via fbx.  I still like Antonia if I'm feeling lazy and I need something quick. M4 is still my 'go-to' male figure.  Generation 1 and 2 lo-res  figures get used quite a bit for animation tests.  Most of my time is spent in the vertex modeller though