Which syntax is better to understanding and using?

I think when using intel syntax you're less prone to make mistakes. On the other hand you can be used to writing and understanding in any syntax in 1 minute, But you will definitely need this 1 minute to change from the one to the other .
All the assemblers are able to compile intel syntax, but AS is the only one (I know) understanding AT&T syntax.
That means if you have written your code with AT&T syntax then your eventual change to another assembler may be a bit more painful.

Intel.

I like Intel too

So, what you are waiting for? Run, Forrest!

Actually it takes most people longer than 1 minute to learn a new syntax... FASM is quite similar to NASM in syntax, but it took me about an hour to learn the differences between the two.



Actually AS supports a form of intel syntax with if you use a directive And there are many assemblers that don't use intel syntax. For starters, almost all non-intel based assemblers have a different syntax. Even on intel-based assemblers, there are some assemblers that I ran across using a different syntax. (http://retroforth.org/asmchart/ should have links to them)



There are some freeware convertors that do a decent job of converting AT&T syntax to Intel and vice versa.

who designed that chip
sure intel