Comparing 2 projects in terms of price for me isn't the correct way. There are many ways to compare 2 projects, but for me, it's the usability, the benefits of the investors when they're using that project and others more.
Comparing them in terms of price is pretty much useless and irrelevant and TBH, I don't see any reason why we need to compare a project that has been there for many years already to a project like TON that just launched less than a year ago. For me, it doesn't make any sense at all. Nevertheless, I don't think that there's any other project out there (altcoin) that can equal what Ethereum has achieved currently. It might have some flaws but along the way, the support for the project has been there.
It may be not correct, I just responded the comment of MUGNIA. He/she was the person who compared the price at the first time.

Sure, there are many ways to compare them. We can compare the market caps, the project developments, the community, the programs, or etc. However, it is true that it is not really necessary to compare ETH and TON. Both have their own advantages and disadvantages. There is no perfect coin, Ethereum is just the altcoin with highest market cap but it doesn't mean Ethereum is above other altcoins in every factor.