Buy iPhone4, or buy HTC iPod classical?

1 recently to give his girlfriend to buy a white iPhone4, black is also good to see, like when the couple bought with the machine, but my hands have a iPod touch3 32G, with a less than a year. If you buy iPhone4, touch on the idle, to buy or not buy, it is difficult to choose.
2. If you do not buy iPhone4, I would like to start with HTC, because I am more obsessed with music, decided to buy one day classical. I do not like to use mobile phone to listen to music, so costs of electricity, the sound quality is not good. Touches to buy iPhone4 or HTC claasic?
4, iPod classical with headphones, then what is fit, and sound good ear hook, have a Sennheiser PX200, and the headset do not affect the hair?
3. If you start with HTC, then what good models?
5. please answer carefully, copy and paste Convicted of interference, thank you.