unfortunately, I'm not too familliar with most of those bands..But my band does a Lifehouse song - "You and Me" and we used to play "Hanging by a Moment". "You and Me" is a great song and only uses a clean amp setting which the Lonestar would be more than perfect for.... But on Hanging by a Moment, if I remember correctly, it has plenty -o- distortion in the choruses...... this is where the Lonestar is going to lack unless you have a pretty good OD pedal or distortion pedal (like a V-Twin or Bottle Rocket).
The Lonestar is a great amp for: Clean, Country, Blues, Classic rock, and some light to medium crunch tones by itself. The Lonestar also handles pedals really well and if you have a nice distortion pedal you can throw in front of the amp, then that's a good amp with great tones and nice features. I have the Roadster which has the Lonestar clean channel I use a few pedals on that channel and it sounds pretty nice.
To be honest, it sounds like a Roadster or Road King II is what you really need if you plan on using a lot of distortion at times and still want nice cleans (unless like I've already said, you already have a nice OD pedal).... But those amps are another $900 to $1500 more, and $1200 is a decent price for a new Lonestar with a 5 yr warranty.
The BEST thing for you to do, is take your guitar in to the music store and play around with it for 30-60 minutes and tweak the heck out of it and see if it'll work for you, $1200 is a lot of money to lay down on an amp you aren't sure about.
That's my $.02 worth, hope it helps.