What God's to buy in Underworld in order from starting to end

[Mario]

I really didn’t like Cerberus (he is my 1st god after Hades) but tried some different strategies and he is ok now - depends on how you use

I would buy Tisiphone next. There may be better order to buy gods but you’ll get all eventually so you can try different strategies whoever you get. Enjoy.

[Indian]

Hello. I am a underworld lover and I play at least 10 matches of underworld. I am at level 30 and I have 4 God's- Hades with requiem, Persephone, Alecto, Magaera,(Sorry for spelling mistakes). All have their both abilities unlocked, Hades has his ultimate. So I was thinking of buying a 5th god at level 35 but I am confused about what to buy ? So tell me what to buy as my 5th good and 6th, 7th and 8th. So please tell me what to buy as my God's with order of unlocking. Also I wanted to know weather Cerberus is good as god or not. I am confused for my 5th god. Wether it should be Cerberus or Hecate or Charon or Tisiphone tell me. Please answer me. Also tell is Cerberus useful or not. No other useless conversations please.