By level 5 you can put 3 points in one skill but then pivot and max a different skill by level 10 just one level later than normal and still before ult 2 rank.
I used to do this on both fizz W's (W, then E) but they have nerfed W rank increases hard enough. I sorta wish bases and scaling can be tweaked to bring it back as a valid option but oh well. Now I do E max, then Q rank 2 to bring cd just low enough then W
With a higher damage meta Q max Kennen is actually quite effective now unlike before. But I'm still used to laning with him with the better pushing W and targeted attacks so to compromise I can do a hybrid like fizz. 3 W then 5 Q.
Lulu used to max w/e she wanted how she wanted. But with a higher damage meta and her mana cost tweaks Q max seems to be the way to go to provide assistance waveclear and strong damage. (why did I bring this up)
Tryndamere yeah I play jungle Tryndamere. You max Q and E before upgrading ult again and probably W too.
Tristana is similar to Trynd. Upgrading Q is more powerful than ult. You could upgrade W once to add 0.5 seconds to a 1 sec slow. Probably not tho. Upgrading her ult increases the knockback which can be useful but it also means you knock them out of auto range so if you're doing good already you may prefer to increase her steroid instead.
Sona's W heal is purposefully(?) inefficient rank 1 so an extra point there makes her more rounded at the cost of a bit of her peak dmg.
I think Corki's E gatling gun is slightly underrated. MF's W resetting steroid/strut is largely underrated. Rank up MF W for push/mobility = map macro and you can build straight AD for her Ult and still have good dps. Makes shoe upgrade unnecessary too. MF's a woman that prefers big swords instead of neat shoes.
Oh Vel'Koz mid. In order to combine having both effective waveclear and fun and strong poke I do the 3 & 5 pivot with his W into Q
Sometimes if I just beat someone with my ult and it made me level up and I have a lot of game momentum I rank up the 2nd basic skill if it's a good ranker upper because ults on cd for 2 mins.
Oh! And how could I forget Veigar! Q max naturally ofc but 3 in W for sufficient waveclear before maxing stun.