1. lower credit scores between 620 to 659. fha really doesnt have many adjustments for credit. wher conventional does and the MI factors do too (unless you can do My community these adjustments are minimal)
2. higher DTI. FHA is alot more leniant on higher debt to income. i have closed deals were the ratios were 42% housing 56% total.
3. need a non occupant co borrower to qualify
every situation is different, but if you have high credit score and low debt to income ratios i would definately look at conventional. feel free to email me at email@example.com to discuss your situation in more detail.