Regarding Hillsong.
I'm 20 at the moment, and for the past few years as one of the senior members of our youth group we really got into the Hillsong thing. Started to go to Hillsong London on a regular basis, and play very similar music.
I think it goes a bit further than the music not being someone's cup of tea. Because musically, it is my cup of tea, but lyrically doesn't consist of the substance that I think a worship song deserves.
In general, and I must've been over 20 times; a Hillsong service has a bit of a forumla to it. The hold the London service in a prestigious central London theatre. When you walk in, you are greeted by one of hundreds of Hillsong staff, all in matching uniform.
The front 8 rows are reserved for members of a few of the youth zones of some kind, and for anyone who got there at 4am to help set up the big screens.
As for the service itself, it's pretty much: Fast song - fast song - fast song - slow song - fast song - pause half-way through to talk about the importance of tithing and pray for a few prayer requests - rest of fast song.
Then the word. The word, now, thinking about it is little more than a motivation speech. They have two quotes on the screens, neither are from Scripture but are about influencing your world around you.
Each week they also present an oppurtunity for people to be saved. The Gospel message is given in about 2 minutes, and makes it sound like the easiest thing to do in the world. "So if you want to become a friend of Jesus, just raise your hand". You then get a book by J John at the end and a post card to fill in to register for Hillsong stuff.
We saw many of our youth "saved" this way, only to sadly realise that they haven't been saved at all. They only liked church if it was Hillsong, otherwise they didn't.
On the way there and way back, a lot of the emphasis became about which songs they were going to do, or which they did.
If I sound synical, it's because I went through a very heavy pro-Hillsong era, but in reality, it's hollow - it appeals so much to the world, that it makes it almost too easy to be comfortable there. I certainly never felt any convicition or heard any repentance preached.
Currently the UK site (hillsongmychurch.co.uk) has a big banner at the top:
"MY Summer - August: the month of parties".
That pretty much sums up my view. There are also loose ties with prosperity stuff. I think Brian Houston has brought out a DVD series called 'money', and judging by some of the parties in the UK, it costs quite a bit to be an active Hillsong member.