Nah, would say there's hardly anything in common between them apart from being light supports, Cecil abilities are good for brutal content where you can stay in place and kite, and has aoe, a defensive supporter
Ramza is better for attacking specific targets, his attacks are more affordable, his buffs enable attacking, an attack supporter, can equip both light and heavy armor
forgot to mention speed and mobility, and mixed magic vs just physical
MAJL & HJAL
Many of us older players fondly remember Cecil from the 16 bit days. A dark knight who turned into a paladin of light.
Just like in ff4’s story he probably would not do well on his own against dark units, especially Kain. But Cecil is a team player, who sacrifices some of his own hp to protect the rest. This resembles the cover/protect skill in ff4 where Cecil, once he becomes a paladin, keeps jumping in front of teammates to protect them from a fatal blow.
Still Cecil is not quite a complete tank like WoL or Engelbert, but rather a tank supporter. He has no skills to increase hate, but he can buff himself and the rest of his team quite well, and has a good atk stat.