It really depends on where and how much you are going to use your stuff in the bc. If you are doing mostly side country off lifts and minimal climbing/hiking with your skis on, then weight and width are not such a concern. If you really climb for a lot of your turns then you are going to be much more weight conscious because 90% of your time is going to be spent going up. I use Atomic 10EXs, which are 84mm waist and very light for their size.
If you want to go with Dynafit bindings you drop a lb. per ski over Fritchis. If you add super light skis then you can drop another couple of pounds per foot. If you are climbing 4,000 to 5,000 vert in a day that can make a huge difference in your experience. On the other side lighter gear tends not to ski as well.
I was skiing in Canada one time and, even though I'm old and slow, I caught some strong young guys on a climb because they were on heavy alpine gear with Securfix bindings. Then on the way down they were skiing mach 9 and throwing back flips off cliffs. We each had what we needed for the day. There is no perfect universal setup, it really comes down to your personal situation.