Just my 2c to add here - I would always split. Especially a big log like 8".
Sawing is fine if you've got big enough equipment, some help and and confidence to run it through straight. Splitting a big log should take about 15mins on your own, is as primitive as it gets (and sounds amazing when it starts to split!)
Just pick your line, try and get any knots / flaws running along one split line, and away you go. You won't come across any nasty surprises hiding in the wood with split staves, as it will always follow the grain, showing you exactly what you've got.
I recently split two 12" English yew logs, and it took me less than an hour to do the whole lot - I also ended up with these 10 perfect staves, even though one of the logs was slightly curved.
You can force a split if you're careful, and keep rolling the log over. If it starts to wander somewhere you don't want it to go, just flip the log, put an axe straight into the log where you want the run to go, and carry on.