900/997/977/912/914/916/920/STH12/STH16 are all good.
Some people have had durability issues with the Z10 and 12
The Mojo15's you talk about are great bindings, but overall if you are looking for something 'light' and 'good', there is a tradeoff between those 2 factors with bindings.
'Good' can often be due to durability, which can result from the way they are made - more metal in the binding, more durable, but heavier.
If you are coming from px12's, the STH12 could be something to look into - based purely on the past bindings you have had, and knowing nothing whatsoever about what you actually NEED.