Who Has the Best LINUX hosting?

So I have this huge site that needs to be indexed....which isn't a problem, but GoDaddy's LINUX servers SUCK. They're down all the time even though they switched me to grid hosting (which was supposed to make down time virtually non-existent). I have a wordpress-based site with a HUGE database, but the pages are taking forever to get indexed because the server is never accessible. I've decided to move to another host for this particular domain and wanted everyone's opinion.....who has the best and most reliable LINUX hosting? Gimme good recommendations and I'll sign up through your aff link...

Two of the places I'm looking into are iPage and HostGator. Any opinions?