batsbrew
ANNI,
sorry, but in that price range, there really is no 'best'.
they all function at about the same level.
Gonna have to disagree with you. While the hardware may be similar (pre-amp quality aside), there are HUGE differences in drivers. Many audio i/f suppliers outsource their driver development. Less of a problem on Macs, where the i/f only needs to be Core Audio compliant.
Rather than get into a p'ing match between supporters various i/f manufacturers, I would suggest spending a bit of time on the user forum for each of those manufacturers. Get a feel for how responsive the supplier is when it comes to updating their drivers.
Too bad I didn't follow that advice myself. [sigh]
I bought the AudioBox 44VSL and THEN got on the forum. Long story short. I'm off of the 44VSL. I'm off of S1 Pro. I'm on SONAR, and now that Tascam have brought their driver development in-house, I went ahead and got a US-16x08 instead of a Focusrite i/f.
From a bang-for-the-buck perspective, and to your point, the OP might select one or two each Focusrite and Tascam models, and any others that get good recommendations, and keep an eye on Sweetwater, MF and others, looking for a Stupid Deal of the day on any of the units that make it to the final list...and acquire.