Ok, it is been a while since I have posted here. Furthermore there is more material and stuff to work around in that subject. First let's summarize what we know about Base goku and vegeta...
1) bog Base goku and vegeta were weaker then Final form Frieeza at 100% as stated by beerus. Keeping in mind that Base goku in battle with frieeza was 3 milion pl and frieeza's full power was 120 mln pl, then goku was just 2.5% of final form frieeza from namek
2) Beerus was slightly impressed by ss3 goku at least it was shown in the anime and he considered him finally worhty to show feel of god's destruction power
3) Enraged mutation vegeta(ss2 looking alike) was stated by Roshi to finally suprass goku, and beerus confirmed it by having more fun then in previous clash. Goku who has been watching this duel, never mentions vegeta suprassing vegetto, just only him as meassure stick. He got one shot by 10% beerus
4) Combined ki failed ritual goku was stated to have incredible power or the greatest power felt , which means this goku ~ buu arc ss vegetto. Beerus was looking with slight interest but expecting ssg he was disappointed still even vegeta was impressed which means this goku > enraged ss2 vegeta
5) After ssg burnt out goku was keeping up at same peace against beerus,however beerus explained that it is only due to crimson fire burning inside you still. So Ss goku with anger and being excited was close to ssg and about base it was only one occurence, possibly still affected from ss, but much better shown in the movie where goku retransform in ssg to push beerus's destructive power back
6) After six months of vegeta training under whis, Goku meet with him and explain that vegeta got stronger then him, but never specify if at all or just in current form(base)
7) While training under whis both vegeta and goku are improving vastly, however oracle fish mentions transformation which would make them much stronger.
Akira mentioned once about goku absorbing power of Saiyan god in himself, but never specify if that means god ki or even keeping such power in base. It can be easily interpretted as hint of ssb comming as it was only then when Kaiosama said he finally turned in god just by himself.
9) Whis told goku that only them together fighting against beerus would give them chance winning, and he meant ssb power including.
10) In ROF frieeza was impressed by goku's power stating he is even stronger then majin buu, while they were both around equal with frieeza slight adavantage.
At this point base goku > bog ss3 goku
11) Before universe 6 tournament goku called Majin buu crazy strong while enraged, which could reffer to possibly fat buu.
12) Picoolo and gohan have trained for 8 months and arguably gohan was retrained from scratch.
13) 3 years in Rosat training made both goku and vegeta a bit stronger, although they were supposed to be at the limit. at this point they are ~ SS2 gotenks at least
14) Against Botamo, goku excussed himself holding back with eating too much food, also botamo's special ability made it hard to see where he could be
15) Against Frost, it was only while clashing with Assault form Frost goku began to get heated up and warming up for fight, then he forced Frost to transform by transforming himself in ss. fresh Final Form Frost ~ ss3 gotenks let's say.
16) Goku stated that Picoolo has no chance against Frost, but can weaken him for vegeta. Still Picoolo has done pretty well against final form frost and we should remember frost was keeping his game of acting as good guy until this point, so hardly to meassure as Frost agreed to hold back stating he lacks power to finish Picoolo(which could be just good game acting)
17) SS Vegeta one shoot tired frost who want to go all out against him.
18) Vegeta vs Maggenta shows that full power Magenta could be above buuhan, base vegetto
19) Vegeta vs Cabba, Vegeta played with him a bit to push him further then trained him to reach ssj by pretending to be evil. Still SS Vegeta easily tanks SS cabba, so SS Cabba would be around Magenta level at full power. Buutenks most likely
20) About Fight against Hit, I prefer to go by manga version, as Kaioken was stupid idea.
Worth to note: Neither goku or vegeta were used god ki fully until transforming into ssb. To sum it up I have base goku and vegeta between buu arc ultimate gohan level and enraged ssj2 vegeta mutation(Yes, I have him below ss vegetto, probably buuhan too).
In Current arc it would be:
Full power base goku - 100% ~ ultimate gohan level(10x ss3(400))
ss3 goku - 10%
ss2 goku - 2.5%
ss2 trunks - 2%
Holding back base goku - 0,025%
The reason for goku to transform was just show off and to show him that he can transform too. Possibly precents would be higher if let's say ss2 trunks was stated to be above majin buu, but we don't know sadly. Still I don't see ss3 goku being more then 20% of full power base goku. Also they can be still felt until they use ssb, so I am not convinced with two base theory. About filler battle of vegeta and ss3 gotenks... I just skip it/omit it unless manga bring it up too.
