Should i take Greco Roman Wrestling or Judo?

ok im 23 and i weigh 190,, iv been fighting MMA for 7 years now.... my fighting styles are kickboxing(boxing),muay thai, and bjj.. my trainer says i need to learn a good takedown style and i know Greco Roman is good for takedowns but so is judo...... what should i learn???? any suggestions??? please THANKS - Dave