I said this on page 1.It totally depends on who you are, so the question is of no real use...
for example everyone can use a Reaction to take an Opportunity Attack (given certain circumstances), and everyone can use a bonus action to take an off-hand attack (assuming they have the right weapons in hand)
but not all Classes can take a Bonus Action to do something really powerful, and only very few things can use a Reaction to do something really powerful.
It's like saying "which is better - fruit or meat?", you are trying to compare two very different types of food.
Sent from my VS995 using Tapatalk