Chrome (not to be confused with chromium) has started blocking downloads much more aggresively than before, also don't forget it has the lowest number of security vulnerabilities compared with ie and firefox.
It does use a lot of memory but you can dramatically reduce that by choosing add ons that have a light memory footprint, such as admuncher over adblock plus for example.
I'd say chrome was also more stable than firefox too. Be aware that using internet explorer there is always a risk that websites will break or not display correctly. This is because internet explorer doesn't implement the web standards correctly (and never has done, ask any web designer it's a pain!), so i personally never use it for that reason and many others.