Perhaps, then, you should consider the upcoming D&D Next (5e) rules. It seems to be going the direction you want - and getting a head start now means you'll be ahead of the curve when it gets released. The system is buggy but headed in the right direction and fairly streamlined.
As far as saves go, each class gets two saves. Rangers, for example, get saves to Dex and Wis. This is not to say that that cannot make Str, Con, Int, and Cha saving throws, but they get to add their proficiency bonus to Dex and Wis. The proficiency bonus is a base bonus added to all things with which they are proficient such as weapons for attacks, and skills for skill checks. Even skills fall under this line of thought. There is no more skills list per-se, but a list of skill like actions (yes, they're skills) that fall under each attribute to which the proficiency bonus is added if they are proficient in it (kinda like going back to 2nd ed proficiencies before 3rd ed skills).
Let's look at the Level 1 Fighter with a Commoner background (we'll talk backgrounds in a little bit) - and keep in mind this isn't everything a fighter gets, we're just talking proficiencies:
Armor: All armor, shields
Weapons: Simple weapons, martial weapons
Tools: Mounts (land)
Saving Throws: Strength, Constitution
Skills: Choose one skill from Acrobatics, Athletics, or Intimidation.
Then he picks a background (for a modular "I don't care, this is good enough" player, or create one by picking 3 proficiencies and fill three more slots using languages or skills. Here's the commoner sample:
Skills:Animal Handling, Athletics, Survival (3 skills, no languages)
Tools: Artisan’s tools, gaming set, mounts (land) (3 proficiencies)
To all of these he adds his base 1st level Proficiency bonus of +1 which levels up (very slightly) as you do: +2 @ Lvl3, +3 @ Lvl7, +4 @ Lvl11, +5 @ Lvl15, and +6 @ Lvl19.
That is IT.
Based on their class, every 4 levels or so (more often for fighters which get a total of 7), the player may choose between an Ability Increase (2 to one Ability or 1 to 2 Abilities - none may be raised above 20) or a Feat (which are less like the Feats in 3rd Ed and more like a collection of like abilities with a focus). And keep in mind, we're only discussing Proficiencies and Feats since these are the topics you discussed. There are more things the characters get, but they do not convolute things, only flavor or focus the character such as traits, path, racial features and class features:
Feat Example for Fighter:
Great Weapon Master
You can let the momentum from a deadly attack carry your weapon into another foe. You gain the following benefits:
• You gain proficiency with heavy martial weapons.
• Once per turn when you score a critical hit with a melee weapon or reduce a creature to 0 hit points with one, you can make one additional melee attack as part of the same action.
• When you make a melee attack with a heavy weapon, you can take a –5 penalty to the attack roll. If the attack hits, you can roll the weapon’s damage dice one additional time, add your Strength modifier, and add the total to the attack’s normal damage.
It takes a half-hour or less to create a character and literally takes 2 minutes or less to level up a character.