Lots of things I search for, result in a 1/2 page of "helpful google snippets", which quite often have no value, or are even completely wrong.
The next half, is then often SEO spam, pages just copying other pages, or mailing lists/forums.
This often fills the second page, too, along with the very links google pulled the snippets from.
This was sorta how Alta Vista was in the end days, page after page of junk.
I think Google is still better, but, it's a joke compared to over 2 years ago, and no, it's not SEO/spam.
They're just not putting effort into keeping up, and even benefit by ad placements on those pages.
Ads. Google's SERPs are about 75% ads above the fold on a laptop. They're horrible.
Privacy. Everything you do on Google is tracked up the wazoo. It's pretty much impossible to stop too.
Share-ability. You can't share a Google search because personalization means everyone gets different results.
API access. Yahoo in particular had a really good Search API. You could search via the API and do things with the results. Google only allows you to embed an iframe to their site to display the results their way, with their ads. You can't search programmatically any more unless you pay a lot of money.