Some will tell you Bilsteins, some will tell you Monroe Magnums, some will tell you Rancho and some will pick other brands as their favorites and suggest you use them.
I think the question you have to ask yourself is this: Am I satisfied with the ride, handling and towing performance with the existing shocks? If the answer to that is "yes", then why change? After all, you got 10 years from the existing shocks, that says something in and of itself.
If you're looking to upgrade, then I'd think considering other shocks might be appropriate, but if you're happy, why change?
Just my thoughts .....