I have two big reasons for preferring Intel syntax:

1. It’s the syntax in the manual. The last thing I want to do when reading or writing asm is to mentally translate from the manual to AT&T syntax.

2. Addressing like (%rax) is tolerably. But the AT&T scale * index + offset syntax is inexcusable. Give me the verbose Intel addressing syntax any day, please.

(As a kernel programmer, I’m more familiar with AT&T. I still hate it. I’m morbidly curious how Intel syntax ought to handle things like SGDT. Maybe SGDT SIXBYTE PTR [address]? The fact that four bytes is called a DWORD isn’t great.)