I think I would go with Alberta parkland regions as well as some in the Boreal or bush areas. At least until Saskatchewan heals for 2 or 3 more years.
If it is your first time, you need to realistically be aware that outfitters who run more than 50% success on 150 or larger deer are doing well. Many hunters take 130 or 140 class deer and are happy about it. It took me 4 trips to get a 160 bruiser.
StrayDog is right;you could kill a bruiser on the first trip,or it could take a lot of years to get one.150's are there,but tough to get.
I don't care for the cookie cutterblind/bait hunting scenarios utilized by most guides in Saskatchewan, although there are some acceptable variations on the theme.But it does produce high sucess rates because baiting concentrates does,and rut hunting whitetails is all about does.....
Plus you will find,if you watch closely,that in many Saskatchewan camps, a few baits will become "hot as some does in a group come into estrous.This will become obvious as bucks literally pour into a couple of baits, lots of action,etc,while other areas are "cold". Favored, repeat clients,on a short hunt(one week)fequently get "dibs" on these "hot" baits,and first-timers...well...they get good locations, but.......
Plus,Saskatchewan restrictions are sort of draconian;you cannot hunt without your guide right there,unless you are in your blind. Walking around with a loaded rifle is verboten. I have seen some guys cited by Saskatchewan game wardens for the most innocent of infractions,ie,cited for "hunting without guide" because they had a magazine full of cartridges while at the side of the road waiting to be picked up;hunting without a license because they had a dead deer in the bush,and a magazine full,while waiting to be picked up;improperly tagging a deer, etc etc. This resulted in a trip to court, confiscation of weapon,hiring a lawyer,etc.I don't consider the place "user friendly".
I have had no problems there myself,and generally good hunts,but the baiting and daunting regulations leave me cold and I will not go back there.
Without hesitation I would pick Alberta.A buck shot over "bait" means nothing to me, regardless of score.