Lac Seul help for possible 1st trip in 07'

All:
I have never been to L/S and thought this would be a great place to get some information. I just started reading a few posts and it sounds like a great walleye lake. I am wanting to take my father and young(11) grandson somewhere and was thinking L/S may be the place for us. We like to catch about everything(smallmouth,northern,walleye
crappie/perch) and was wondering about the above species. From what little I have read it sounds like a great walleye lake but I also wondered about the other species?

We have been to LOTW a couple of times and it seems like "you" like L/S better? Could you also recommend a lodge(s) that offer housekeeping cabins and we typically bring our own boat. Also, we like to stay on the mainland nd not an island. We would also like suggestions for your thoughts on time of year to go as we are flexible but want to go during a great time(even though that means the weather may not be the best). Oh, we do not mind trailering our boat to another lake for a day if that means "x" lake has great bass fishing or great crappie fishing,etc.

Thanks guys.