Paladin build help 2024, first 1-20 pally

Looking for thoughts, opinions, and advice. 

3rd party campaign (Odyssey of the Dragonlords. No spoilers)

Point buy: 17 str. 14 con, 16 cha. Put my 10 in dex, 8 int, 8 wis. 

Aasimar. Noble background (Vanished one for the epic) 

Party is all casters. Warlock. Bard. Wizard. Druid. Cleric. 

Oath will be devotion. 

Lance looks very fun but ties me into at least two feats (mounted and PAM) so i need to accept a late level stat waste or skip either Heavy Armor Master or Great Weapon 

If i go GWM i can grab HAM, and mounted and +2 cha. 

 Fighting style- defense is an easy go to, but i kind of like that they made GWF better. On a great sword thats pretty awesome and on a lance that makes the polenstrike feel more reliable. 

I think there would be a question over if Lance can benefit from GWF while mounted, as it's two-handed property technically does not apply while mounted.

Personally, unless it's all open fields, I still do not generally advise going mounted combat focused, since there will be places and situations into which you can't take your mount.

Is there any specific advice you're after?

Mostly on that and the fighting style. 

It loses 2 handed but it is still heavy and that's the property that matters. ^_^

I think I am leaning GWM though, as it lets me do more to my stats. 

I am currently playing a paladin and have found the steed to be mostly useful as treating it as disposable.  I find in about 50% of the combats I am in it is not relevant as a mount due to the map or the risk.  There are many times where I use it to deliver my character to where I want them and then have them exit.  The mobility is really key in turn 1 but after that they are less needed.  Later then can function as a summoned creature and occasionally offer support or blocking.  Simply having the steed run to a position to dodge and block can be valuable in slowing down enemies and protecting your back line.  With a free daily casting it is fine to have it get killed.

So I wouldn't bother with Mounted Combatant.  I think other str based feats give you more, and I would rather increase my Charisma.

*nods* ok. ^.^