Rare Candy is 12s to pick up, 3-7 to use

Possible uses:							Time		Ranges (+LV)	Ranges (+1)	SE text
- Before Porygon (if hit Douglas) (to Lv. 40, ~4550 exp.)	0:19		6		7		1
- On Escape Rope menu in Lighthouse (to Lv. 37, 3813 exp.)	0:15		5		12		1

(Ranges assume early underground)

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POKEMON (experience needed from no spinners)

FROM MOST TO LEAST IMPORTANT (assuming perfect stats):
Crobat (2787)
Dragonite (3806)
Weezing (3599)
Golbat (950)
Koffing (2414)
Koffing (1682)
Golbat (3806)
Arbok (~2500)
Electrode (648)
Electrode (156)
Houndoom (3771) (Return to save SE text here and on Golbat)
Golbat (3953)
Arbok (11)
Arbok (2488)
Lapras (2221)
Porygon (~2097)
Vileplume (1480)
Muk (3474)
Meganium (4108)
Dragonair (~2400)
Dragonair (~1250)
Dragonair (~100)
Slowbro (3187)
Seel (2744)
Muk (~700)
Koffing (906)
Muk (~1600)
Dewgong (2167)

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IN ORDER OF APPEARANCE:
Arbok (~2500)
Electrode (648)
Electrode (156)
Seel (2744)
Dewgong (2167)
Arbok (11)
Muk (~2000)
Koffing (~1300)
Porygon (~2100)
Weezing (~3500)
Koffing (~2400)
Koffing (~1700)
Golbat (950)
Meganium (~4000)
Muk (~700)
Muk (3474)
Golbat (3806)
Arbok (2488)
Vileplume (1480)
Houndoom (~4000) (Return to save SE text; range on 13 Attack at 6)
Dragonair (~2400)
Dragonair (~1250)
Dragonair (~100)
Meganium/Golbat (~5600/~3950)
Slowbro (3187)
Crobat (2787)
Dragonite (3806)
Tangela (possibly save SE text)
Exeggutor (same)
Lapras (2221)
Alakazam (~2500) (Speed with <3 DV?)
Sandslash
Exeggutor (~5000)
Gyarados (532)
Alakazam (2683) (Speed with 11-12 DV)
Espeon (~800)

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Exp marks (from Werster's notes at http://pastebin.com/cFWUkR9y):
26 to 20 before Miltank
384 to 23 for both Umbreon and Espeon | Tie at 13 Speed DV
1050 to 24 for just Espeon | Tie at 9 Speed DV, outspeed at 12
978 to 25 before Bayleef (No X Spec) - 314 to 25 before Zubat
134 to 26 before Haunter | Tie at 13 Speed DV
605 to 29 before Growlithe, 254 before second Growlithe
1991 to 30 before Hitmons (to skip Rare Candy)
8 to 32 before Poliwrath
648 to 35 before Electrode, 156 before second Electrode
2167 to 36 before Dewgong, 2744 to 36 before Seel
2374 to 42 before Muk
2705 to 44 before Golbat, 1388 before Arbok, 380 before Vileplume
2853 to 48 before Golbat (Think about not X Spec here if you have it?)
2087 to 49 before Slowbro
1687 to 50 before Crobat
2706 to 53 before Dragonite
1121 to 57 before Lapras
2683 to 61 before Alakazam | Outspeed at 11 Speed DV (normally 12 Ties, 13 Outspeeds)
532 to 61 before Gyarados