I get to use different Park tools at the LBS. Park CT-3 is my favorite. Tough enough, works well and replaceable pins. CT-3.2 and 3.3 are less useful due to the sliding shelf. The CT-3 has a fixed "loosening shelf" that really is handy. Out of production though so watch for used. I donno what Park was thinking.
I never use the CT-4.3 for anything, due the design of the "business end" - you cannot see the far side of the link (concealed within the casting) so you cannot see how far you've pushed the pin, either out or back in. OK for those single use pins but, at the shop, we see very few of those. I don't have those at home. Too specialized a tool.
BTW whatever you get/have, take it apart, clean and relube once in a while. Works consistently if you do. Some folks tend to forget about maintaining their tools.