The best tattoo art to get is a tattoo you wont regret later in life!!! Tattoos should be something you research to best educate you on your decision there is nothing worse being stuck with something inked on your skin forever that you do not like. A lot of people rush into this do not make the same mistake.
There are plenty of websites around that will direct you to decent tattoo templates to use, some are popular others unique the choice of tattoo designs out there is literally endless, this hinders many from even getting a tattoo. It can get annoying looking for that perfect tattoo after a while with the amount of tattoo websites.
Some times the best tattoo art is a design you can draw for yourself (if you can draw). Others will say its a popular tattoo that famous people have. I personally think it should be a well researched decision on whatever your idea is look it up on the internet the meaning the history whatever you can learn will give you a better guide if it is the right choice for you.