Between Pampers, Huggies and EQ, ano ang pinakasulit na diaper?

my daughter used the cheapest one on the market. doctor instructed us kasi to change diapers every 3-4 hours kahit konti lang laman (to avoid rashes) and being as kuripot as i am, di ko kayang gumastos ng malaki for expensive diapers. lol. so far, she's almost two, and parang mga 3 times lang siya nagkarashes since pinanganak ko siya