My vote goes to @(a,b,c) and @a @b @c.
I never understood why some builtin storage class keywords have @ in front of them (e.g. @property, @safe, @disable) and some don't (e.g. pure, nothrow).
IMHO the cleanest design would be to have builtins as plain keywords (ie. no @ in front). And then @xxx is reserved for UDA.
I understand that this would be a breaking change and not likely to happen - just want to know the reasoning behind it.
/Jonas
