IP gain seems a little low.
IP gaining is a crucial part for new players as well as constant players. It goes to show that you can buy more with RP but that's for more of the more professional players. IP is used solely for runes and gaining champs. But as more come in it becomes the challenge to try and get it.
Some may say this isn't needed but I say it would benefit greatly. IP is now gained too slowly to be fair.
I will play a game for 20 minutes and gain only 40-50 IP. Now I'm not trying to be unreasonable but that said, it would take 9 games to get a 450 IP champ. So if you do the math right, that would mean it would take over 20+ to get a 1350 IP champ. Now there is the +150IP for the win of the day but that's if I win.
I don't have all the time to play LoL like I would to get some of the champs I'd like. I suggest that there be a raise in IP gain. make it so that when you at least get to a 20 or 30 minute mark, the player receives minimum of 150 IP itself. This is only a boost of 40-50 from its original value if one hits this mark. This will also mean the losing team will gain the half of this but that is also ok as well.
When surrendering, there should be an added surrender boost for the winning team. This will make it alright with more likely both sides for a forfeit. This bonus could range from +15 or more depending on the amount of time playing the match.
Edit
Champions have been brought out into this game over and over. But the more there are, means the more the player has to spend. I've counted this by rows to see how many of each category there are of champions. There are at least 7 champs with 450 IP, there are at least 22 with 1350 IP, almost 24 with 3150 IP, 31 with 4800 IP, and 32 with 6300 IP. So the odds are more that someone new will have a hard time getting any champ above 3150 IP unless the player wants just certain champs which will still take a while.
If you say that (compared to yourselves) that you only play certain champs then that is alright but there are those who would still like to try each of them, get a feel of the champ, and see if they are worth getting. Thus the Free Champ Selection weekly. But even that seems to have flaws in my eyes.
Usually 1 spot or more will be filled with a 450 IP champion. This should not be needed. Unless they plan to reduce another to 450 this does not seem a fair rotation. These spots could be filled with underplayed champs that could be played again if put there (such as Yorick, Zac, Swain, and more). Now the ones listed are played. I know but its crazy to think how many times I will see a Yasuo in each game I've played.