You're missing that the shares prices are different between these funds. VTSAX shares are ~3x the cost of VHYAX shares. You can't just compare the absolute dividend payment per share. You need to look at dividend yield as a percentage of the share price. Look at the 30 day SEC yield. Vanguard lists this for each fund. For VTSAX it is currently 1.33%. For VHYAX, it's 3.04%. This may not be a perfect, but at least it's standardized and a way to compare.
There is no free lunch though. VHYAX invests in companies that pay higher dividends. But some companies pay low dividends and re-invest to grow the company/stock more so will likely see more price appreciation. Do you really want to ignore those companies? Personally, I'd rather just own the whole market. It's simpler and I think less risky not to discriminate against companies that pay low dividends.
One thing to remember is that if you hold VHYAX in a taxable account, you will have to pay taxes on those higher dividends every year, assuming you're over the income limit for the 0% fed rate. Even then, your state may tax you for it. The more you pay in taxes now, the less money there is left to compound over time. Lower dividends are better in taxable accounts, since you have the choice of when to sell and take capital gains. If you hold this fund in your IRA, this would not be a concern.
I'd do a bunch of research now and figure out what you want your asset allocation to be. How much in stocks and bonds, but also what types of stocks to invest in. Total US, large/mid/small cap US, international, emerging markets, REITs, high dividend, high growth, etc. Write this down, then stick to it. The hardest part of investing is keeping the emotions out of it. Having a plan written out that you just need to execute to makes things a lot easier. Before you just start throwing $3k in each fund that sounds good, figure out a plan.