What is the best car? The call which motivates and allows you for the maximal movement — to drive more, explore more and experience more. Preferably a small fuel efficient car (hybrid) or a small electric (high range) car. Ideally all wheel drive to allow for you to go on drives even when the weather is poor, rainy, snowy.
What is the best camera? The one which is the least cumbersome. The one which motivates and allows you to maximally explore and photograph with as little hesitation as possible.
Also with exercise — perhaps the best exercises are the ones which allow for the most fun and dynamic movements?
The best music — the music which motivates you the most to move!