Speed Tier List

1. Itami Nanae (61, 71 when fully enraged)
2. Eiken Shinzo (55)
3. Kuro Blackshadow (47)
4. D (43)
5. Kichōna (42, 52 when fully enraged)
6. Takeru Suzuki (41)
7. Jin Hyuga (34)

I counted the pts on these:
Skilled, Talented, Gifted, and Prodigious are worth 5
Enhanced Body is worth 5
Rage is worth 10, but only when fully enraged, so it doesn't count for the tier list
Yang, Lightning, and Wind natures
Unarmed Combat
Body Flicker
Weapon Art
Chakra Flow
Advanced Taijutsu
Advanced Fighting Styles and Advanced Weapon Style that boost speed
Chakra Mode
Muscle Enhancement
Man-Beast Transformation
Lightning and Wind Spears
Weight Control
{Elemental} Chakra Cloak
Flying Thunder God is worth double
Typhoon
Swift is worth 20
Machina Ex is worth half

The RAW is very ambiguous. Trying to figure out what gives more than another and by how much would be hell. Counting pts is just the simplest solution; it's good enough to get a good gauge at the approximate speed of builds.

Itami Nanae: 61, 71 when fully enraged)
Yang
Wind
Unarmed Combat++
Chakra Flow
Body Flicker
Advanced Taijutsu+
Weight Control+
Swift
Typhoon

Eiken Shinzo: 55
Talented
Enhanced Body
Yang
Unarmed Combat x3
Chakra Flow x2
Advanced Taijutsu x3
Chakra Mode x3
Earth Chakra Cloak (mastery)

Kuro Blackshadow: 47
Prodigious
Skilled
Lightning
Unarmed Combat
Body Flicker
Chakra Flow
Advanced Taijutsu++
Advanced Fighting Style (Flashing Shade Fist)++
Advanced Weapon Style (Howling Mountain of Darkness)++

D: 43
Gifted
Lightning
Body Flicker++
Weapon Art (Swords)++
Chakra Flow
Advanced Taijutsu++
Advanced Weapon Style (Striking Iron Style)++

Kichōna: 42 (52 when fully enraged)
Rage
Lightning
Unarmed Combat (Upgrade x2)
Weapon Art (Upgrade x2)
Body Flicker (Upgrade x2)
Chakra Flow (Upgrade x2)
Machina Ex

Takeru Suzuki: 41
Lightning
Unarmed Combat 2
Body Flicker 2
Chakra Flow
Advanced Taijutsu
Flying Thunder God

Jin Hyuga: 34
Talented
Yang
Lightning
Unarmed Combat 2
Chakra Flow 3
Body Flicker 1
Advanced Taijutsu 3