I am leaning towards the lightweights but have everything. The lightest is the Browning Ti 325 at 6.3 lbs, then my Wby ultralight in 280 AI at 6.7 lbs, then Savage lightweight in 6.5x284 at 6.77 lbs and then the Browning Ti in 7 WSM at 6.8 lbs. Then the remainder all the way up to my 300 RUM custom built Sako and 9.7 lbs and my 30-378 WBY right at 10 lbs.
It's a question of what your personal preference is when your out hunting. How far are you walking? For me, my heavy guns are more for certain situations... standing behind a round bale waiting for an elk to come out of the bush. A specific coulee where I know that the mule deer love to sit in... the lightweights are for when I gotta walk for a while. Or push bush. Now, none of my hunting involves pack hunting. But even if I was... I don't know if I would want to pack extra weight in my pack?
To illustrate how different a hunting style can be... when I go out for a day, I generally have 3 rifles in the truck. I hunt with 1 for a couple of hours then the next etc etc. But sometimes if I know I'm going into a specific area, I'll take a lightweight for walking, a long range for if I need it and then something in between. But I also went one day with a Win 88, 100 and Savage 99 all in 284 Win for the fun of it.
To me... you think of what you will encounter the most and plan accordingly. I'll throw a catch 22 in this all... why would you carry a 9.5 lb or more rifle unless you need the weight to tame the recoil? Unless your carrying a Ruger No. 1, Blaser K95, with a 26" barrel, you start putting a 26" or 28" barrel on a long action for a 300 RUM and wow... it's a handful to start handling through the bush.
While my wife would advise strongly against this... it's a good reason to have multiple rifles... then your covered for whatever situation your going into. What's that honey... no I'm not on a gun auction site... no... I'm not bidding on another gun... I'm watching porn... no I'm not buying more reloading stuff... honest I'm on a porn site!!!! I think she just walked away muttering bullsh!t...