I had 99 hunter on my ex-alt, and I did it by catching red chins starting at 63 up to 99. Took a long while, but made great profit off it.
So basically, if you want to make money, go with red chins.
If you want fast exp per hour, do what Sumskills said. It's been so long since I took Hunter training seriously, so I don't have my share on this.