There are lots of good highway tires. You might want to read some reviews on TireRack.com or DiscountTire.com. I'm not sure how much feedback you'll get on this site concerning those kinds of tires. Most members here are enthusiasts who like to use their Jeeps for offroading. Maybe someone who just tows a boat or trailer may have an opinion on what you're looking for. But don't be discouraged from asking questions.
The Forteras come stock on the XK and are a decent on-road tire. I mentioned the Assurance because I had them on an old Subaru Outback, and they did very well on both wet and snowy/icy roads. They are pricey, though. You get what you pay for.
2007 Jeep Commander Overland - Steel Blue
5.7L Hemi + QDII
Rusty's adjustable rear UCAs
Caroline Driveline front drive shaft
285/70/17 Goodyear Wrangler Silent Armors
Activated: DRLs + Tilting Mirrors
Cobra LX 29 LE CB with Firestik antenna
Rear fog lights
Mopar Grille Guard with Rugged Ridge HID driving lights
Sylvania Silverstars Ultra hi/low
Optima Yellow Top
"4 wheel drive does not mean 4 wheel stop!" -Lee Goldberg, WABC TV weatherman