Ok so here's the deal, I just had to change cars and I am in the process of switching all my equipment to my new vehicle. I am planning on keeping my original speakers and amp but I want to upgrade to a double din DVD HU.

I have narrowed my choice down to these four options and I need anyone's opinion on these models. I will be mainly using my ipod on these units and I am really keen on figuring out which one has the best ipod interface. I don't want a HU where you go to select an artist from the list and it loads for 5 minutes between selections, so mainly I am looking for speed/peppiness.

Kenwood DDX318 6.1" DVD/MP3/WMA/AAC Receiver w/ USB and Aux-In

Pioneer AVH-P2300DVD Double DIN 5.8" DVD Receiver (AVHP2300DVD)

JVC KW-AVX640 (KWAVX640) 6.1" Double DIN Stereo w Front Aux & USB

Sony XAV-622 In-Dash Multimedia DVD Receiver w/ iPod Control

Comparison of all four:

Sonic Electronix - Compare Products

Any help will be appreciated, Thank you