Free Web Design Tools Comparison: Aptana Studio vs. KompoZer

They're a tie if you equally weight each of those categories, but they aren't really equal. Which one is better really depends on what you need. Aptana is more development focused whereas Kompozer is content focused. I have both installed and use them occasionally, but for different purposes.

I find Aptana a little too buggy on Mac, though it's OK on Windows, but resource hungry and sluggish even on powerful machines. I hope they improve it as it has a lot of potential, but for now I feel using it is a bit of a chore.

Kompozer had potential, but seeing as development is essentially nonexistent I can see it fading into the background as soon as something else comes along. I'm hoping something else will eventually come along that's open source like it. Until then, I'll stick with BBEdit for most of the design and development.