I use Midori on Linux and IE on Windows because of the scrolling.
IIRC Firefox is doing decently with scrolling on OS X with Apple's trackpads, but it doesn't work as well with the same trackpad in elementaryOS (or with the touchscreen in Windows). Midori works perfectly.
From my experience, scrolling well is a bigger deal than how many threads it has for whether or not I like using a browser. I know there are stability advantages to the process separation, but I haven't had any trouble.
IIRC Firefox is doing decently with scrolling on OS X with Apple's trackpads, but it doesn't work as well with the same trackpad in elementaryOS (or with the touchscreen in Windows). Midori works perfectly.
From my experience, scrolling well is a bigger deal than how many threads it has for whether or not I like using a browser. I know there are stability advantages to the process separation, but I haven't had any trouble.