I would like subclasses from level 1 to feel my PC is different, with his own mark of identity. I understand the subclasses from 3rd level is to avoid abuses by munchkins with multiplayer. I also like the concept of archetype of Pathfinder where some class features are replaced with others, like the gladiator from Dark Sun. This is more interesting than the prestige classes from 5th level, or advanced classes from 3rd in d20 Modern.
Sometimes I think about a idea for a "modular d20", a division among level of power (hit points, bonus to attack, unlocked power level) and level of knowledge. A PC with high power but low knowledge would be like a superhero in a high school who has to study to learn more, and a character with low power but high knowledge would be that old man who has studied a lot of things and can give good advices.
I would agree about the 3rd level to avoid multiclassing abuse, but 5 of the 12 classes are at level 1 and 2 already. As far as the multiclassing abuse, I could always shift other things up a level. For example:
Fighter
1. Subclass
2. Second Wind, Fighting Style
3. Action Surge
I see more level dipping to pick up second wind, action surge, and a fighting style that a base subclass feature such as Improved Critical. Granted the BM maneuvers are good and having some spells at level 1 as a EK would be powerful, too. But compared to the Fighting Style and the front-loading Action Surge, I don't seem them as OP.
I've thought about a modular d20 design as well. The idea that you spend your XP to earn or improve features. One think in 5E I am
not keen on is the proficiency bonus being standard for combat, saves, skills, etc. all rolled into one thing.
Mechanic wise. It wouldn't break anything I suppose.
Story wise, which ever table is different. As a GM I try to add in class progression in whichever rules we are using, into the story. Like they find a mentor or
It seems a little odd that the backstories are they are brand new lvl 1 beginning their adventuring careers... and already have access to advanced techniques and knowledge. Yeah its workable and things can be overlooked or spedup but less immersive.
In a similar light, with backgrounds like "Soldier" it implies you should already be good at fighting and such, so I always though granting some martial weapons, shields, and light armor would make sense for non-battler classes who take the background.
Many of the backgrounds to not reflect the "brand new adventuring careers" concept IMO.
