spark plugs

hello all ... 2000 cirrus 2.4L DOHC 24 valve; looking to replace the spark plugs, I'm considering maybe some higher end stuff. Has anyone had good luck with a certain type or brand? Recommenations? This vehicle is a daily high mileage driver ... not an aggressive driver thou like us all can be ... looking for the gas mileage. Thanking all in advance, regards, Irv

When I replace plugs, I install exactly what I took out. I have found the hard way that switching brands is hit-n-miss.