Re: Help me choose for this two delay pedal...!
I would just recommend the Flashback. The H2O is only necessary if you are geeking out on a specific chorus from the 80's that's no longer in production. Doesn't sound like OP has thought it through at that level.
The TC is cheap, does analog, digital sounds, mimics specific units so it can get you in the ballpark of famous delays, has TonePrint if you don't like the stock sounds, and if you really want to geek out you can use the editor to reassign knobs and tweak settings not on the panel.
I have both an old Visual Tap Delay and an AlterEgo version of the TC. If you just need a good versatile delay that's not too expensive, get the TC.