GENERAL TRAINING is easier to pass. although there's only one difference from Academic training: WRITING part.
Academic training writing exam consists of Graph interpretation and essay writing. General training consists of Letter writing (friendly letter, business letter, etc) and essay writing. Here in Philippines, it's the writing part that most filipinos struggle with. personally, it's the same for me. the fist time i took IELTS, i did good with my speaking, reading, and listening. i only got 6.0 in writing. but since i used that exam for my VisaScreen application in U.S.A. my results were good enough.
I took the General training IELTS April year because Canadian embassy required it for my immigration application. I was worried with my writing but i got a 6.5 in writing, 8.5 in listening, 7.0 in reading, and 8.0 in speaking. I was going to retake IELTS next month for CNO registration. Luckily, I rechecked and found out they are now accepting general training, unlike a few months ago.
by the way, Ontario requires the minimum results of:
writing: 6.5
listening: 6.5
reading: 6.5
speaking: 7.0