I never used ESET, so I can't tell about it, but I used to have Avast for many years. I used to like Avast because it was low in memory usage (just two processes) and also because it is fully customisable in terms of its settings (you could adjust most settings as it suits you). However it started to become bloated with secondary futures (like software updater, performance scan, offers to buy VPN etc.) and I started to realise it was actually slowing down my system quite a lot (like surges in CPU usage, slow to open files/programs) so I couldnt stand using it anymore. So, I would probably give a chance to Eset.