For me it depends on the time of day whether I use uber/lyft or take a taxi. The flat rate for a taxi from Long Beach to the Harbor hotels/
Disneyland is $47 and during non rush hours I have found the uber/lyfts to be about $35 like the above poster says but during peak times they are running about $45 so at that point I choose the taxi because it is right there ready to go so worth the extra $2 for me.