voyager has a nice clean, simple and appealing gui, that on the plus side. but its so buggy underneath, i dont even know if it pays to open its sources. i have recently played a little with aweb, both under aros68k and os3.1 as this is the simplest working browser i know working on both, and must correct my previous opinion about it. it doesnt look very funky, but considering the circumstances it is quite fast, stable and accurate even under plain amiga chipset. if it was possible to plug in css into it i could become much better usable nowadays.
edit: the problem is, its open source but i dont know where to look for them. likely they are kept hostage by big gun who apparently was the last who worked with it, and rescued it from lost repository or something the like.
Paid Voyager releases are actually very stable. It is those free evaluation versions which were from yesteryears having annoying crash bugs. Not very good strategy to get customers, though.
The biggest downside in Voyager is that it is using lot of private MUI calls. Getting it running on AROS (Zune) require lot of in depth knowledge about MUI. On OS3 it of course is not problem.
However, who is going to continue development of those browsers? AROS, MorphOS and OS4 users have got access to better browsers with HTML5, CSS, (limited) flash, Javascript, Unicode support and many more. Old Amiga browsers have their own quite efficient engines tailored for Amiga and I still like IBrowse very much for its efficiency. But unless someone is going to work on it 24/7 their feature set is frozen to year 1999 forever.