Right, the Riftblade as written is as sensitive to ability placement as the old version of the RW warrior was -_-\
Is it better to do
If one is better than the other, then it doesn't look like you're going to be able to mash them all into the same macro because that 2nd IB versus a FB gets very very close.
Shouldn't technically matter where you put blood fever once your rotation gets going. I guess it should go first. Pretty sure max dps from fever is to let it fall completely off then use fever that next GCD.