I use Dolphin on the Tablet, although the reasoning - slowing the machine down - seems to be true of all Browsers now. Not sure what Dolphin would be like on the PC, might give it a go.
There was news recently that Internet Explorer is officially on it's way out. It appears to be much more than a re-branding, and about time !. It's been Opera for a while for me, although I did use FF for a while. I prefer the layout of Opera over Chrome. However, I use Chrome as a secondary Browser, as - very rarely - there is an issue that Opera may have with a website.