In an actual real game? Close enough also counts the level doesn't need to be exact
Eldritch Knight 6, Bladesinger 2
this one seems the oddest to me, what is eldritch knight 6 giving you that would not make more sense as blade singer 6 fighter 2?
caster level is 4 on f6/w2 but 6 on w6/f2 I have seen people take level 3 in the fighter just so they can get an extra pt out of second wind an extra d10 HD and the caster level from ek3. but taking more then 3 levels seems out of this world.
My first character was a fighter, and I quickly learned that spells were the main way to do things in D&D and as such maximizing caster level was important.
Paladin 6/hexblade1 (or any hexblade dip on a charisma class).
OH boy paladin levels 1 and 2 are huge and give you access to smite, hexblade 1 gives you cha to hit and damage, after those levels any full caster of cha is a power house.
My favorite character of all time was "Evlyn Defrey-Balefire" who started as a hexblade, took 3 levels of paladin for oath of vengeance, then alternated between warlock and divine soul sorcerer.
We made it to 14th level when she was a Paladin of vengeance 3 warlock Hex blade of the blade 5 Divine soul sorcerer 6
Divine Soul xyz, Death Cleric 1
never seen a death cleric, and never have I seen Sorcerer/cleric at all
many times, that dip for second wind action surge and the extra hp is a big one. If you start at level 2 or 3 with the character you can even have your 1st level be fighter max the hp, and be prof in con saves.
If you've seen them how did they play out in a real game?
all of them are great, I wish that hex blade and finesse weapons had more ways to use other stats for weapon attacks