To be honest all chargers do charge with a CV/CC program and have no other tricks so basically all work the same.
The main differences will be with:
- power source
- max charging power/current
- max discharging power/current
- balancing current (which is mostly 300mA but with high current chargers that can be up to 1A)
- interface
- and of course, the price......
Are you a racer wanting the max out of your battery then yes, a high charging current and discharging current is wanted. Are you a basher then those super high charge/discharge currents are not noticeable.