Best possible quality DVD ripping?

Hey guys,

I have a fairly complex ask here. Basically, I have a load of DVDs (Films and box sets) that I want to rip and put on my media server, so I can put the hard copies in the attic and they'll stop cluttering up my house.

However, after trying many, MANY rippers, none of them give a good enough quality. So, I found this forum and asking: Does anyone know of a rip that will give DVD-quality, but without it being an ISO?
My requirements:

• I don't care about file size. I've not bought the storage hard drives yet, so thats irrelivant until I do (I can effectively get 16TB on the server with a bit of money spent )
• It CANNOT be an ISO file. Ideally, MP4 or AVI but I'm fine with other common formats too. I play the files on my xbox, computer, and three different PC's running XBMC, and those can't play ISO's.
• I don't care about bonus features, menus etc. I just want the main feature(s).
• It must be the best possible quality, as if I was watching the DVD.
• I don't care about the price as long as it isn't ridiculous. My media network has proved incredibly cheap so far, so I still have enough money to spend on things like this.

I know this is possible from when we watched a copy of Iron Man off a friends memory stick. It was absolutely brilliant quality, and when I asked where he got it he told me he torrented it. I found the torrent in question (I don't use them, but wanted to see if the post named the ripping software), and although it did claim to be a DVD rip it didn't say what software.

So, does anyone know of some software that'd be good for me?
Some extra bonus things would be good too, but not essential:

• Multi-platform. I have a windows, a macbook, a power mac and two linux machines. If I can get the same decent software on all 5, I can rip my collection 5x faster.
• If Linux-based, I want to be able to write a script to automatically rip and save a DVD I put in, and eject it again once done. This would foolproof the system for my family when we get new DVDs in the future.
• All-in-one software. I saw a few solutions that used two or three different programs in the process. Apparently the quality still wasn't that great, but I'd rather not go through multiple things per disk - I can see it getting very tedious!

Any help would be absolutely brilliant. I don't mind a bit of complex stuff, I know how to use google if I get stuck