For laptop, I usually use Evernote or Sublime, depending on how I want to store them. Sublime has some nice plugins that make it really sweet for notes. For phone, I use Evernote or Jotterpad. Evernote is only when I really want to store the notes for the future. If they're disposable, I just care about how fast I can write. BTW, you should also look into being able to type quickly. I find a critical weakness in taki…
I use Sublime for notes but store them as plain text files. My other favorite Sublime feature is it persists unsaved tabs through app restarts and system restarts thereby giving me the effect of holding on to my notes until I'm ready to actually save. A lot of stuff I just need temporarily.