I don't think you can go wrong with any of the BLR models. I have never handled or shot a pre 81, but I do have 2 steel receiver model 81's (7-08, 284) and a Alloy receiver PG model (358),.. they are all great rifles.
I prefer the PG model for use with a scope, hunting from a stationary position, and prefer the 81's for use with open sites or a Red Dot for faster handling when sneaking in thicker cover,.. I'm not saying the 81's aren't great with a scope aswell, I'm just saying they seem a bit more streamline for a tad faster handling.
While the BLR actions are the slickest working of all lever actions, the steel receiver actions function just a tad bit slicker than the alloys.
Don't worry about all the talk about the triggers,.. they are no where near as bad as some people make them out to be,.. you are obviously not buying a BLR for a bench rest competition rifle, although most of them are as accurate as the average bolt action, all 3 of mine will shot MOA.
As we all know, handling/shooting the different models is the best way to make up your mind, but sometimes that just isn't possible,.. anyway,.. I think you will like what ever model you choose, and the 358win is a wicked round, especially in the BLR.