Hatate (:* :* :*) is definitely worth it. But I'm just so out of practice that no matter what order of scenes to clear you give me, I'll fail at all of them. :< Le sigh.
Now now, don't sell yourself short! I know very well each stage has at least one easy stage (well, easy once you learn it), and that you have the skill to beat them.
You're on level 9, right? In that case, aim to clear Camera-Shy Rose (9-5), which is one of the easiest late-game scenes. In level 10, strive to capture 10-1, which, as usual, has a trick. 10-4 is technically easier, but is difficult to learn. Come level 11, either 11-1 or 11-4 will be a fairy easy capture, and in level 12 simply capture 12-5, which isn't -easy-, but doable. Come on, I know you can do it! =D
9-5 is definitely easy and self-explanatory.
I don't get 10-1 or 10-4, but 10-3 is also not hard at all.
Safespot 11-1 (hint: the spot is near Kanako, and it's huge)
if you don't like 12-5, 12-2 isn't very hard either, but does take a while,
due to a number of defensive shots you might have to take.
If you need to boost your number of scenes cleared (you need like 58 for spoiler),
you might want to clear some stuff from earlier levels.
Extra cards aren't very hard either, once you unlocked them,
so you can also concentrate on clearing 4-6 of them
