XP: Multiples. Name Opinion

AJFmom

Can you ladies give me your opinion; we have "Landon" for sure as a name as well as both our fathers' names as middle names: Jon and Stephen. My husband loves the name Tyler for the other name...and while it's not set in stone I like it as well. 

Which do you think sounds better...

Landon Stephen or  Tyler Stephen

I don't want people to automatically think of Stephen Tyler, however with both Landon and Stephen ending in "N" and both being two syllables I think it might sound to "sing-songy".

Perhaps I'm over-thinking this? lol.

 TIA!