You are a great candidate for laser tattoo removal! Black ink is the easiest color to remove. Both of the lasers you mentioned would be capable of removing your tattoo successfully and safely, when used properly by licensed professionals.
Black ink is usually the easiest color ink to remove.The best technology currently to remove tattoos is pico technology (vs. Nanotechnology). Pico technology breaks the tattoo pigment into smaller particles which make it easier to remove the pigment. With any technology however, the skill and experience of the provider is important. Make sure your provider has experience removing your type of tattoo.