After doing much research, seems like I wil be replacing the 2233rz with the LG 24GM77-B

With the 2233rz I always used the DVI cable that came with the monitor.

The 24GM77-B also includes a DVI cable, but no HDMI or Displayport cable.

My question is: Should I buy an HDMI cable or a Displayport cable? Anything noticeable? Should I even bother with those or just stay with the DVI default cable?

The monitor is 1080p/144hz.

DisplayPort cables seem to be more expensive compared to HDMI.