Which are better: tampons or menstrual cups?

After reading the benefits of menstrual cups they seem so much better than tampons. I'm really surprised that they are not more popular. The only thing I am iffy about is how big the cups are, even the smaller ones. They look SO big. I'm 14 almost 15, virgin, hymen still intact, sensitive and tight vagina, never tried a tampon before, moderately heavy flow. I think I might try tampons first then maybe try the menstrual cups. What do you think? What type of cup would be best for me that's on the inexpensive side? What tampons would be good for me? Please give me good feedback - I'm sick of pads.