Here is an At-A-Glance server comparison table
| Features | ZCS | RSWCS | WCS | FXS | ES |
| GUI | - | yes | yes | yes | - |
| low memory usage | yes | - | yes | yes | yes |
| fancy entry | yes | yes | yes | - | custom |
| country on entry | - | yes | yes | - | - |
| client on entry | yes | yes | - | yes | yes |
| joined with | yes | yes | - | yes | yes |
| fancy exit | yes | yes | - | - | custom |
| staytime on exit | yes | yes | - | - | - |
| pic formats | 3 line | 5 line | yes | yes | 5 line |
| custom commands | RC1 | yes | yes | - | - |
| multi join same ip | 5 | yes | yes | yes | yes |
| large pics | yes | yes | yes | yes | yes |
| protect host on redirect | yes | yes | - | yes | loopback |
| room password | yes | yes | - | yes | - |
| hide & hidecmd | yes | yes | yes | - | - |
| online offline cmd | yes | yes | - | yes | yes |
| check connection cmd | yes | - | - | - | - |
| custom opmsg & action | yes | - | - | - | - |
| split config files | yes | - | - | - | - |
| block | - | yes | yes | yes | group |
| block name | yes | yes | yes | - | group |
| block word | yes | yes | yes | yes | group |
| blockkick & blockban | - | yes | - | yes | group |
| replace | yes | yes | yes | yes | yes |
| replace word | yes | yes | yes | yes | - |
| flood control | yes | yes | yes | - | yes |
| flood kick | - | - | - | yes | yes |
| anti-spam kick | - | - | - | yes | - |
| kickIP | yes | yes | - | yes | ban |
| hostname resolve | yes | yes | - | - | - |
| user is typing (wpcc) | - | yes | yes | - | yes |
| shows baned user attempt | - | yes | yes | yes | yes |
| Switchable Redirect | - | - | - | yes | yes |
| refreshed connections | - | - | - | - | yes |
| switchable bot block | - | - | - | - | yes |
| tray icon | - | yes | yes | yes | - |
| tray icon right click | - | yes | - | - | - |
This is My Opinion on these servers,
[ZCS] Points against = allows 5 names on a single IP,
[ZCS] Points in favour = low memory usage, very stable, easy edit config's, lots of features.
[WCS] Points against = less features than rswcs,
[WCS] Points in favour = low memory usage, more features had been added to the last versions.
[ES] Points against = no /help menu
[ES] Points in favour = low memory usage, customizable outputs, has 2 languages.
[RSWCS] Points against = has a memory leak, [increases with longer uptimes]
[RSWCS] Points in favour = more features than wcs, colour changable GUI, config in 5 languages.
[FXS] Points against = unstable, closes/crashes without reason or warning/error message,
[FXS] points in favour = config in 2 languages
