Line Chart is beneficial for showing trends or changes over time.

Which chart is useful? 1 minute, 5 minutes, 15 minutes, 30 minutes, 1 hour, 24 hours,1 week, or 1-month chart.
The 1-hour chart is more useful for me. This all depends on your trading type. If you like scalping you can settle for 5 min or 10 mint chart but for the long-term trading, 1 hour to daily chart is more useful.

It depends on what you are currently trading in terms of your strategy too. Scalping calls for shorter term so it will be a chart based in minutes. If you are aiming for the long term hourly ones are more suitable. Every type is important and useful in its own way in different cases, so you cannot really say one is better than the other.