Big Peaks, eh? Well you're really experienced in outdoor life, so really anything would be fine for you. If you're planning on hiking all 46, then I might recommend an easier hike at first so that you can save the climactic hikes for your finish. If this is just a let's visit the park and hike some peaks kind of thing, then you might want to do a bigger, longer trip. How long would you be up here? Would it be for a weekend? If you want a challenge, I would suggest a Great Range traverse. A friend of mine just did one, 32 miles in 15 hours, and it looks like it would be a blast.
If you give me some more details about your length of stay, and how much you want to be challenged, I might be able to advice more.
I'm was given an internship with Wilderness Inquiry in Minnesota from May 31st through mid-August. I'll be co-leading canoe, kayak, backpacking, and camping trips, as well as helping the management of their gear warehouse. Do you know Minnesota? Any good advice for wilderness experiences?