Many things. From an outsider perspective I would say her integrity, ability to make considered decisions and desire to lead by uniting rather than dividing outshine Trump by a long way. Those leadership qualities are important.
You are correct in saying "an outsider perspective", and I would add....wayyyyyyy outside! Sadly, you have shown that you don't know her at all. Take a look at the 2020 Democratic primary and see how well, and unifying she is! Her own Democrats didn't vote for her over any of them that were running. The real funny thing about that is that the Google AI won't answer the question of how many participants were in the 2020 Democratic Primary! lol There were actually 27! lol Harris' own state of California didn't vote for her! She finished last of anyone who got delegates! From her own state, who you would think would know her better than the rest!
Integrity: She slept her way to the top. Can lie with the best of them.
Check her time with the Major of San Francisco. So, not so different from Trump, right?
Considered Decisions: Check out her actions on the Border which she never visited. She talked to the countries in Central America and gave them money! Didn't help at all. But visit the border to see what the issue is and what Law Enforcement, and Local communities were facing? Nope. But she did say that we shouldn't celebrate Christmas, because the children coming across the border couldn't get gifts or celebrate it themselves! Any bets she celebrated it! Trump, a whole of yes in this area.
District Attorney time in California: A lot there, but I leave it up to you to check it out. You might be pro or against Marijuana, so you have to make your own call on that, and her words since!!! lol Now Trump is against Marijuana but believes each State should determine its legalization or not. Like Colorado and few other states.
Uniting rather than dividing: Oh, you really haven't been paying attention to this Administration, and her words as well concerning those on the other side Republicans/Conservatives! Yikes! No different than Biden in saying he was going to unify the country and see what they have called the people who disagree with them and agree with Trump!!!
So, the qualities you believe she has is the reason to vote for her, which are unsupported. Are there actual qualities that she does have, or what policies she believes in that would warrant her to be President? I mean she has a long political history in California, that you can check out as far as her positions.
You don't have to check. I mentioned the above, just to show you that there is much you don't know about her outside of what the Media is now portraying her as being, which sadly is mostly a lie.
So, if you tell me that you'd still rather have Harris instead of Trump...then you need to gut check yourself. I'd respect you more if you said, I won't vote for either one!