ive done WW and tried tony ferguson..ww works for me and ive had good success with it. when i did tony ferguson it just wasnt for me cos i was starving lol i lasted a week on it!

i think it all depends on each individual as well, my mum loves TF and is going really well on it..and she tried ww and didnt care much for it!

sorry probably not much help am i !!
good luck