Used to emphasize that one option is much better than another, not just slightly better.
“The evening class schedule is far better for me since I work mornings.”
“Honestly, staying at a hotel near the airport is far better than one downtown for this trip.”
In Task 5, examiners reward clear, confident opinions, and "far better" adds emphasis that shows you have a strong preference rather than sitting on the fence. Use it right after you state your choice to make your stance unmistakable, then explain why with a specific reason so the emphasis feels earned.
Synonyms: much better, considerably better, way better