Although I recently started using AniMixPlay as my main anime platform, it certainly is good for sub/dub ad free users. There are typically different platforms you can use when one is offline, quality may differ. On the contrary, the website is down right now so it has some problems. But watching anime is easier on AniMixPlay because the format of it is easy for new weebs.
Hulu - Hulu is a streaming video on demand service that provides users all their TV in one place.
9anime - Stream your anime online in high quality, watch anime online in English dubbed + subbed.
FUNimation - Funimation is one of the biggest anime streaming websites based in North America that make the anime experience more extraordinary.
KissAnime - KissAnime.
Netflix - See what's next. Watch anywhere. Cancel anytime.
GoGoAnime - Gogoanime.