Everyone that has a Sol Nova say that it's an excellent machine, even Hawk haters. Everything that was an issue with the Hawk pen is fixed, I dont have one personally but it has pretty universal acclaim. I have 3 broken hawk pens but I'm pretty convinced on getting one. I just dont need anymore machines lol. Flites are amazing also but you need to adjust them for the desired performance, Sol Nova is plug and play great performance. I still use my Xions and Hawk Pens and 2 other models in my rotation but off your list I'd get the Sol Nova or Flite