Okay, i was getting my alignment worked on and having a few other lil things looked at and asked them how much they charged to change out the spark plugs because i've heard that they are a complete pain in the ass to change out. I've got a 99 2.5GT if it makes any difference.
Anyway, besides wanting to charge me almost 100 bucks to change out the plugs, the guys also said he'd rather not do the job because i said that i wanted normal copper plugs, not the platinum as is suggested on his computer.

My reasoning was that i remember a post on here a while back where everyone was saying that they prefered the NGK Copper's because you got better power and fuel mileage out of them, correct me if i'm wrong please.

Anyway, two questions: Why are the copper's better?
and, How hard is it to change them out myself with normal hand tools, i don't have a lift and i don't trust jack stands ever since i had a jack fail and a car crush my hand while working at a brake shop about a year ago. Nifty scar by the way

Thanks