Looking for users input by those who have used Viagra, Cialis or Levitra. Which do you like best?

I've taken Viagra and Levitra and didn't notice any difference in my erections but Levitra seems to take longer to work. I'd like to try the daily dose of Cialis but can't afford it. My penis pump works just as good as any of them and it works in seconds. "HARD AS A ROCK"!