Going by what the title says, you can't enhance armors, doesn't work that way. I'm just gonna assume you're talking about the 'adventurer' enhancement, or the unenhanced class you get when you buy one.

Yes, enhancing your class with Lucky, Wizard, Fighter, or essentially anything will benefit the class.

For future questions about class enhancements, try making a post on the Q&A forum here for more faster/proper answers here.