This head-to-head comparison question seems not to have been discussed on this board.
From the reviews of the Bonafide that I've seen on EpicSki, it seems to be a ski that is very capable in nearly all conditions but puts a premium on the skier's ability and to a lesser extent, his weight. So in the right hands and skied properly, it can be an everyday ski that can handle groomers, crud, chop and some powder - basically everything but the deeper stuff. Also seems to not be the ski you'd want to take through the bumps unless you really want to charge.
The Influence 105 also seems to be a very capable do-it-all ski, but with a more relaxed, more forgiving personality that does not demand so much from the skier. It also seems to be a bit better at short radius turns. Like the Bonafide, it seems to be a good everyday ski for nearly everything except deeper powder but unlike the Bone, can do so more easily for skiers of lesser ability and is probably less demanding when navigating through the bumps.
Is this accurate? I'm interested in the comparison because my local shop has good deals on the 2014 version of each and I'm thinking that one of them can truly be my daily (really, only) ski. I'm a decent, reasonably aggressive but far from expert skier who can handle most runs except for the truly steep (or moderately steep and heavily moguled). Probably somewhere fall along the continuum from high intermediate to advanced, depending on terrain and conditions. I live in the east and will spend a few days at local hills, and an occasional weekend in NE, but am lucky enough to be able to get out west for a couple of weeks. My last ski was the P90, which was terrific but seemed more at home on the groomers, so with a greater bias toward western skiing - and the hope that I'll get to spend more time in the trees - a 98-105 mid-fat option seems about right.