Dreamweaver CS6 for me, mostly for html, a bit of PHP with lots of CSS and lots of jQuery.

I've always liked the colour formating of the code. Its not so hot at indenting but that may be because I don't trust it to rewrite anything and have all that stuff turned off.

The CSS handling is updated in CS6, a handy little icon pops up when you hover and one click goes straight to the style. Very helpful if you're cascading through 3 or 4 levels of stylesheet.

Its turning into a proper IDE even offering error messages (that are actually useful) while I'm writing PHP!

I especially like the ability to store details of many sites with its integrated ftp. I've normally got several on the go at once and having it remember the server details and ftp passwords of each one is great.

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CS6 needs a higher spec. machine. Those IDE functions means its doing far more work behind the scenes. I used to run CS3 on the same machine comfortably but CS6 has graphics glitches and even crashes. I'm fairly sure that's 'cause it doesn't like the cheap onboard graphics and maybe the 32bit limit of my XP!

regards
prixat