If anyone has huge fund, than go for polkastarter as it's required 3000 POLS tokens to be get whilelisted by lottery system, not like guaranteed. Also, most of the IDOs are having great ROI which was done on polkastarter. On the other hand, low fund hodlers can go for poolz as anyone can participate into poolz IDO if he/she has min 1 Poolz token, but need to be have huge luck to get selected by lottery. So, try to do the research and go for any platforms according to the hodling amounts.