Base Drago - Small Town Level+ for AP and Durability (Comparable to other low-tier Bakugan, which are capable of creating massive hurricanes (Monorus, Beestriker, etc.)), SoL for speed (Even the weakest of Haos Bakugan can manipulte light for attacks, and Drago is shown to be comparable to them)
Delta Drago - At least Small Town Level+, likely City Level (Far superior to his base form, can summon a large hail of huge metoers as his signature attack), At least SoL, likely FTL (Far superior to Tentaclear, a Haos bakugan which is far more powerful then many low-tier Haos Bakugan)
Ultimate Drago - Country level (Barely defeated Alpha Hydranoid, who obliterated Hades, who was able to evenly fight Neo Dragonoid), At least FTL (Faster then before)
Infinity Drago - At least Universe Level, likely Universe Level+ (Comparable to Silent Naga, was beating Silent Naga on his own for a while) MFTL+ (Comparable to Silent Naga)
Perfect Drago/Perfect Core - Multi-Universe (Far stronger then Infinity Drago, stopped two universes from collapsing in on each other with minimal effort) At least MFTL+, likely Omnipresent in New Vestroia (Became the core of Vestroia and could see everything that happened while in New Vestroia)
Neo Dragonoid - Country Level (When fighting Maxus Helios, created a massive explosion visible from space that was the size of a country), likely FTL (Should still be comparable to Alpha Hydranoid)
Vexos Dragonoid - Country Level (Should still be comparable to Neo Dragonoid), likely FTL
Maxus Neo Drago - At least Country Level (Fought evenly with Maxus Helios, who was able to shrug off NEo Drago's Country Level attack), at least FTL, possibly higher
Cross Dragonoid - At least Country Level, likely higher (Managed to defeat Maxus Helios MK2 on his own), At least FTL (superior to his previous form, kept up with Maxuss Helios MK2)
Maxus Cross Drano - At least Country Level, likely higher (Managed to fight evenly with Maxus Helios MK2) At least FTL, likely far higher (Comparable to Maxus Helios MK2)
Helix Dragonoid - Planet Level (Could fight Helios MK2 when Helios was using the Twin Destructor Battle Gear), at least FTL+, possibly MFTL+ (Darkanine did a calc for Helix Drago when he released a large amount of energy, it was calced at MFTL+)
Lumino Dragonoid - At least Planet Level (Superior to his previous form, took on Dragonoid Colossus), FTL+, possibly MFTL+ (Superior to his previous form)
Blitz Dragonoid - At least Planet Level, possibly Universe Level (Superior to his previous form, it was stated that if he were to fight Phantom Dharak that they'd rip the universe in half just as the original Dharaknoid and Dragonoid did), FTL+, possibly MFTL+ (Superior to his previous form, was going to rip the universe in half in a short period of time, presumably)
Titanium Drago - At least Mutli-Universe (Could keep up with Razenoid, who had surpassed Code Eve, who is also superior to the Perfect Core), MFTL+ (Could keep up with Razenoid, who surpassed Code Eve's power)
Fusion Dragonoid - At least Multi-Universe, possibly higher (Stronger then before, defeated Evolved Razenoid), MFTL+ (Could defeat Evolved Razenoid)
Does this look any better by comparison to the one I originally posted? If you have questions, feel free to ask them.