At the start of this season I was way out of practice (I'd taken a year off) and I dropped to the 600's in ranked solo queue. I worked my way back up to 1100 using nothing but Mids and Junglers (mostly Nocturne, Nautilus, Karthus and Galio) because I knew I could change the outcome of the game by myself doing either of those things. Now that I'm back to 1200 I can't help but hating jungling and trying to get out of it, because the same thing happens 4 out of every 5 games.
1.) I end up having to start cloth armor/5 pots on everything but Xin Zhao or Warwick because I either don't get a leash or I get a terrible leash (one hit and run away, or done in such a way that the camp resets and the mid or ADC doesn't leash it again).
2.) I go for an early gank/get in a fight with the enemy jungler under level 6. My mid/top/bot laners don't notice, even if I ping and am standing 10 feet away. I stare incredulously as I get counterganked/ignited/heal baited/collapsed on by four people, and the lane continues to stand there farming and not responding to pings or team chat.
3.) My top lane Irelia/Darius/some other bruiser who probably doesn't speak English decides to say nothing but take my second red buff either the moment it pops up and I am on the other side of the map, or while I am dead. He or she will refuse to respond to pings or chat, and continue trying to take it from me while I am playing something Red-dependent. I spend the rest of the game trying to both counterjungle the enemy jungle and counterjungle my OWN jungle as well.
4.) My energy/cooldown based mid demands/takes the second blue and tries to take every blue after it. Or my ADC, usually while I am dead or my Smite is on cooldown and I am clearing the camp or helping the mid get it.
5.) I go for objectives and nobody responds. We just killed four of the enemy team in bot lane and came out with full health at level 8? Better ignore Dragon and continue farming/recall to base because you want to buy/go steal blue or red buff before I am willing to let it go. Wide open tower that we can easily take down? No, you're going to ping me to fall back and type in /all "Our jungler sux".
6.) I initiate fights under optimal circumstances and nobody follows me in. This is followed by laners typing in /all "Omg report feeder cho".
Basically, yeah, the Jungler still has the most effect on the lanes, but it is also the most frustrating and thankless position.