Most of the lakes are just as secluded, some aren't because of private cabins and atv access.
The two lakes you mentioned are both good, can't really go wrong.
If I fish with these guys again it'll likely be Rice though. I've heard from others the walleye fishing is amazing and it's a huge lake which I like.
Is this a family trip with your son? Reason I ask I'm in the process of getting something booked for my family in July. My two kids are young, aged 4 and 7.
Normally I would fly with my friend Eddie to the Attawapiskat but he's booked solid.
I've searched high and low trying to find a good and cheap alternative.
Most outfitters offer 50% off for young kids, not bad, but when you have two it's still expensive.
Long story short I found a great outfitter (one I've flown with several timres), and after July 1st kids 12 and under are totally free with two paying adults.
Adult rate is $875 Canadian tax in for a week, $750 for 4 nights.
Really really good deal imo. If you're interested in which outfitter pm me.