Depends -- if you want to get into flashing your own ESCs (eventually), I'd recommend the F-20A or F-30A as a go-to -- not bad with the stock rom, but among the easiest to flash yourself to simonk.
For pre-flashed, the Afros seem to get good reviews here as do pre-flashed F-20A's, blueseries 20A's and Mystery 20A's, but those you'll be dependant on the guy who pre-flashed it using a good ROM (and Identical ROMs). There are a *LOT* of no-name ESC's that are getting the Simonk treatment and rebranded as "premium" multirotor ESCs. In some cases they're good ESCs made better. in some theyr'e poor ESCs with a nicer ROM to hopefully cover over design defects. if you don't know what's under the shrinkwrap, it's hard to tell which is which. Caveat Emptor.
Outside the simonk realm but still in the not-yet-crazy-expensive, the DJI ESCs rate well, but be aware, they typically mount a female bullet connector at the board instead of three leads -- not a bad thing, but something to keep in mind when piecing things together.
As for motors, looking at your suggestions . . . the "improved" blue wonder from Keda looks unimpressive . . . until you look at the 3000kv model! That HAS to be a typo!!!! the 1700 can't top out at 10A and the 3300 top out at 19A!!!! Either way the top end is not much better than the regular 2370's on most of those motors and the crazy-numbered 3000kv motor is unsuited for multirotors. Even at 210W, the prop is too small and the pitch too steep at that RPM to do anything but scream across the sky. Even if that's your goal, there are better motors for racing quads.
The DT750 is a bit of a workhorse -- an old workhorse, but a reliable one. mounting props and balancing the motor bell are things you'll have to take some care with, but it's pretty well understood at this point -- if you go this route, search or ask about these issues before you finish your build.
There are much better motors on the market these days than either of these, but which will depend on what you want to do. I can say the Sunnysky motors are very popular for MR right now, and I like the ones I've gotten -- very solid build, very powerful or very fast motors (depending on which you buy). T-Motors are nice, but starting to get pricey. Supo's have always been a good go-to motor, but I don't think they've built a short-shaft motor yet . . . a pitty . . . otherwise they're good motors.