Every gardener will have a favourite set of gardening tools, sometimes its to do with practicality, and sometimes its due to 'what was cheap at the time.
However each garden actually dictates a little as to what is essential. In a small courtyard, maybe a hand trowel and some pruners will do.
Larger garden will require garden forks and spades, loppers and maybe even a few mechanical tools such as electric hedge clippers and chainsaws.
The trick is to review your needs, and buy the best garden tools you can afford.