Macbook pro 2015 v 2016 v 2017 for video editing

Hi

I've just jumped into the world of 360 video editing.

I currently have a 2015 max spec MacBook Pro which is dying and I'm looking for a new model.

I'm looking for a second hand 2016/2017/2018 model but want to spend maximum £2000.

My most important requirement is video editing performance, particularly 360 editing, therefore I need to compare graphics, cpu, memory and SSD performance.

Please could you recommend what to go for and the performance comparison? I googled for an hour and couldn't find graphics comparisons.

Thanks

Steve