I've never had a good commercial veggie burger, sorry. Either they're too grainy and starchy, or they just plain taste bad, or both!
Fortunately, really delicious veggie burgers and bean patties of all kinds are very easy to make at home, and usually freeze well. My favorite is from Vegetarian Planet, Falafel Burgers -- they have chickpeas, grated carrot, cumin, lemon juice, garlic, and some other stuff, the texture is excellent, and they are DELICIOUS!