Depends what you want..
My first (the second time around) Amiga was the 500. I had one back in the day, and I was able to get one for a good price, and that got me back into the Amiga. Still have that one..
But expanding them is spendy (I do have 8M RAM, 2M CHIP, a DCTV and an AEHD floppy).
So, I looked around and my second Amiga was the 1200. It really is (at least for me) the best all around Amiga.
My 3rd Amiga was a 1000. I always wanted one.
That's mostly for the historical factor..
I don't really think (at this stage) I'd be interested in a big box Amiga (even the 3000, which is beautiful or the 4000 which is powerful).
I have what I need in my 1200 as far as power (for me) and expansion.
desiv