After a 3 (and a bit) year Cadetship I did 36 years divided almost equally between Airport and Area work. The beauty of the earlier Cadet Courses was this across the board training. Without a doubt, I look back on my airport years as the most interesting and satisfying. However, at the end of the day, it is a personal thing. I knew many colleagues who did not like airport work.
With NATS today, much of the approach radar work for the London airfields is being done from the Area centres anyway. That prevents you being the aerodrome / approach controller you might prefer to be.
All the best in whatever you end up doing .... it's a great job to do.