Candlestick chart - Similar to OHLC, but open and close are filled. Often Black or Red candles represent a close lower than the open. While White, Green or Blue candles represent a close higher than the open.
Line chart - Connects each closing interval together on a line.
Personally, I prefer using the Candlestick chart as it gives an overall preview very clearly. Future charts shown here will mostly be candlestick charts.