When I started using the internet in the mid '90s I used Lycos and Excite. Then I discovered Hotbot, which actually had more search results than any search engine online at one point. Yahoo was interesting back when it had curated content. It's interesting that they thought they could catalog the entire internet by hand and place everything into categories. That was a bit ambitious I'd say, even back in the day when they did it. And now it would be ridiculous. I'd say Yahoo has done really well evolving with the times. I'd like to use Bing more. I kind of like how they do things.
But ultimately I always use Google. Clean. Simple. On point. It's an easy favorite.