Any of the modern firearms coatings if properly applied will give you years of good looking service. That being said my preferance is:

#1 CeraKote (both the thermal cure & the ambient cure are my favorite's)
#2 Polane T (better know as DuraCoat) ambient cure
#3 KG GunKote thermal cure

After a lot of testing and abusing these are the three coatings I have chosen to apply on my customers weapons and accessories. Each has its strength's and weaknesses but all three are quality products that will last for years.

If you have a significant other and only one oven I would recommend staying with an ambient cure or planining the project when you have an afternoon alone. They have a very distinct odor when you are baking them to cure. The smell has never bothered me, I can barely even smell it, but way back in the day when my shop was in our basement, it drove my wife nuts.

Do a search I did a how to thread for DuraCoat (Prolane T) & Stickman has done one for Moly Resin (KG GunKote). If you would like info on the three above mention products there is a description and color chart for each on my website: LTM Refinishing
If you need any guidance or assistance drop me a line or give me a call.

Joe

Edited because I cant spell.

Brownell's Aluma-Hyde II epoxy paint over parkerizing.  The fresher the park, the better, and de-grease like your life depended on it.

That said, it is relatively cheap and nearly indestructible.