For me ..
I got by 2 main ways ...for selecting oshimen..
By destiny or By a moment of magic ...lol
Anyway .. I guess no one here follow the way of multi oshimen .. but it work really well for me ..
and I do know people who use the same way and work well ...
but really .. for it to work .. you must have a strong will, purpose and great loyalty ..
Strong will to not get carried away to a point that you end up with too many that oshimen loses its meaning and value..
Strong purpose to treat her as a oshimen .. Do everything that a oshimen deserve from you ..
great loyalty because its a commitment .. and it give value to your fandom .. oshihen is not an option ..
selecting a Kami is only for times when you can only select one ...
and ranking them is for times where all of them turn up together ... it is for decision making without confusion ..
ranking is not a love ranking .. its a importance ranking according to situation .. as oshimen all are no.1 .. there is no such thing as a no.2 oshimen .. and you should never fall trap to the idea of no.2 oshimen no.3 oshimen .. then you are screwed .. and your fandom get messed up .. that's why for some people it wouldn't work ..because they do not know the difference ..
example.. I love both my father and mother .. but if someone ask me who is my inspiration, i would say my father ...
but if someone ask me who am i most grateful for, it would be my mother .. but at any time none of them fall into 2nd place ..
for succession .. its decision base on a importance for the situation ...
For me .. I got a additional position for idols .. which is "The one" idol ..
who will Kami everything .. my whole fandom from AKB48 to H!P to idol street to every group I support ..
and as of now it's still AKB48 Maeda Ami .. she took over from C-ute Suzuki Airi .. So I have change this position once ..
For this .. like if Ami grad .. for .. AKB48 Miyu will take over Kami ..
but for my "The One" idol .. it is not decided ..because its cover my whole fandom and its too wide ..
that will be a moment of magic meets destiny ..
for my succession plan
AKB48 Ami > Miyu
SKE48 Kumi > Mizuho
NMB48 Riichan > Keira
HKT48 .. LOL .. I only have 1 oshimen .. which is Sakura ..
but I am just holding on for Meru ..because I have this weird rule of not oshimening year 2000 born and younger ... if she is born 7 days earlier .. she would be my oshimen long ago .. LOL
and there is a chance that Meru may be Kami instead of Sakura ..
Anyway to me HKT48 is still kind of a new group .. I am going to take my time .. LOL
I think the reason favorite don't work is because you never develop you love towards them .. You may like them but not seeing them as oshimen means you never really build you fandom around them .. that's why favorite don't work ..
For rest of the other groups .. they are much smaller in size ..
So I only have 1 oshimen for each group .. and for them .. no succession plan ..
and it follow the usual as in what you guys follow.. 1 oshimen and succession plan wouldn't work ..lol
Like for S/mileage .. when Sakichy graduated .. the next favorite in line couldn't take over ..
and so i waited for a year until I decide its Meimei and I hated all of the 2nd gen S/mileage back then .. LOL
So that's why I suggest waiting and taking your time because for people with 1 oshimen ...redemption is much harder ..
So for 48 I use another way ... and that will also mean its really damn hard for my love for 48 to end .. LOL