If you enjoyed the thumbnails on YouTube, here they are for better viewing. Images were screenshotted from the Android version of the game and edited in Snapseed/Google Photos.
Planet Order
- Taris - required, introductory planet
- Dantooine - required, Jedi training and overall game plot introduced
- Tatooine - easiest of the planets (especially if you do Anchorhead, Sand People Enclave then Star Map), but requires very few main character stats to complete missions
- Kashyyyk - essentially a lengthier Tatooine but notable for picking up Jolee Bindo (for a later optional mission) but requires more strength and endurance so Canderous is good here. Bastila dn Jolee are equal in abilities and force powers so having one is enough but both are find for extra abilities if your main character is strong enough
- Manaan - Good now for the Sith and underwater bases as all characters are now leveled up enough for these areas
- Korriban - Saved for last as the "hardest" due to the Valley of the Dark Lords
- Leviathan - More of an interlude level to setup the Revan reveal to Carth but is more of a bulk stats giveaway
- Yavin Station - The Trandoshan story arc is a fun little distraction from the main game but definitely visit the Rodian for his inventory of high stat items. I always recommend beating him at Pazaak for the discounts so it's easier to buy but also unload unwanted items to him for better rates than on main planets