Just one bitcoin
Bitcoin is the most profitable crypto to all investors. Bitcoin is the first digital asset to hit the crypto market. In fact it was more profitable for its early investors.
Without any form of comparison Bitcoin is the best and has proven to be the best of all time, other coins performance depends on Bitcoin performance, Bitcoin is less risky, and it has a solid foundation, from invention it has shown lots of significant outstanding performance, those that invest at it earliest stage and has hold for long will tell more about the proven potentials it holds, with dca strategy you can invest with as little as you can after making provisions for you personal up keep, emergency, reserved and float funds which will accompany you in having a successful Bitcoin investment journey.
No wonder why you say "without any form of comparison" because if it is, then it will be hard for us to say that BTC is the best because other alts had some use cases that it doesn't have. This is the reason why they can rise on their own because they can get a different demand. Guess it's safe to say that they are also less risky but BTC had built a more solid foundation because it's more older than them. Nowadays, it's no secret anymore if what BTC can do because its past records are already written and documented which are freely available for public viewing. There are two ways to invest but indeed DCA, seems to be more flexible.