^I actually don't care much for mewithoutYou's music, but I'm glad you had a good time at their concert. I do like some Christian music, like Switchfoot, Jars of Clay, and Future of Forestry.
I have been to many, many concerts. Here are some highlights. Growing up we used to go to the ol' Route 66 Music Festival in Joplin, MO. So I got to see some old school acts, like Kool and the Gang, Journey, REO Speedwagon, STYX, Joan Jett, and Foreigner. I saw Johnny Cash when he came to Branson in the mid-90s. I've also been to some contemporary shows. I've seen Goo Goo Dolls, Vanessa Carlton, Third Eye Blind, Rilo Kiley, Steven Curtis Chapman, Casting Crowns, Chris Tomlin, and Nichole Nordeman. I've also seen Phantom Planet, Sting, Lifehouse, The Calling, and Kanye West. The greatest live show I've ever seen is U2, and I've seen them twice. They are worth every penny! They're coming out with a new album in October and planning a world tour starting next spring. If they come to within reasonable driving distance and you're lucky enough to get tickets, definitely go see U2. It is a spiritual experience to say the least.