Head Unit for 2004 318i msport (Dynavin, Alpine, AVT, Casca)

Hi guys,

I have a BMW 2004 318i MSport and I want to change my Head Unit
Currently, the BMW Business CD setup is a 1 DIN - stereo/tape and a 6-cd changer in the trunk
I want a 2 DIN with touchscreen, BT handsfree calling, play MP4s, MP3s, AVIs, steering wheel controls and a GPS perhaps.

Below are what have been recommended to me so far:
1. Dynavin E46 (Frau, San Juan)
2. Casca 1622 (Carstethics, San Juan)
3. Alpine IVA W520E (Perfect Circle, Banawe)
4. AVT IMD6305i (AutoCamp Ortigas, Goodrich Banawe)
5. Pioneer AVHX555080BT (AutoCamp Ortigas)

I have read a lot of stuff about Dynavin in e46fanatics.com but don't have much idea on the others.
My friend said that AVT is not good while a very expensive Alpine seems promising, I mean price should be proportionate to quality right?
Another warned me about fake Pioneers and Carstethics is strongly recommending Casca.

Your expert thoughts will be much appreciated


Thanks!