If your ticks are not higher than 30M, you are better off in a Rattlesnake. Same price or cheaper, more mobile and losing a drone or two is not nearly as costly or hard to replace. In a Rattlesnake in certain anoms or with some fitting modifications, you can get up to 38M ticks, on average something like 30-35.
I prefer Niddy. The faster speed is particularly handy when you want to recall your fighters in case of emergency or after you finished an anomaly as well as to send them to the spawn when you land in a new anomaly. I get 55-65M ticks with my Nidhoggur on average, sometimes as high as 72M and all that while not using a no-tank ratting hyperspatial fitting.