Warning: This post is more anti-Hinata than pro-Holo, so, proceed with caution.
I really don't know how Hinata has shown more of a support to Naruto than Holo did to Lawrence. Holo was always there with Lawrence for the whole story, whereas Hinata was just a 700-chapter-long meek-looking stalker, only getting to be paired by Naruto because Kishimoto wanted Sakura for Sasuke. I knew any form of pairing between those four would be horrendous, and we got one of the variations, of course. God bless.
Here is a fun fact. The best thing that Hinata achieved in the entire series, or rather her highest moment ever, was her showing up in the fight against Pain. In better words, the best thing Hinata has ever done was.. to get beaten to the ground repeatedly in something that cannot be considered a fight even. Absolutely hilarious.
Maybe I shouldn't overlook her character's other aspects. She easily showed the least aptitude to be a shinobi out of anyone in the story thanks to her timid personality. Now, this wouldn't be a major issue if it actually wasn't the only thing that was going for her. Flash forward a couple of years, and Hinata seems to have better mental strength, yet we realize that she actually had nothing else to make up for her lack of personality. She is basically the "loves the main character from the shadows" type of girl who has no other defining attributes. Tenten was a complete joke as far as character development goes, without a doubt the worst supporting character Kishimoto created for me. And how was Hinata a better developed character than Tenten? She secretly loved Naruto. Okay, I laughed.
And since there was absolutely no realistic romantic connection between Hinata and Naruto, Kishimoto went ahead and wrote an emotional suicide scene for Neji, A lot of garbage had to be written to make it work, yet none was an attempt to give Hinata a personality.
Either way, comparing Holo to Hinata is a heresy. One was a well-written character with a personality, while the other one was not necessarily poorly written, since something that did not exist to begin with might not be considered poor, after all.