WWE's are better. Royal Rumble and Elimination Chamber, were two good PPV's. Wrestlemania was okay, but Lockdown beat it out.
So for April: TNA
Overall: WWE
What an idiotic post. So because you didn't like this year's Wrestlemania, TNA has taken over the month of April? No, I'm not buying it.
Not only that, but Wrestlemania was
still better than Lockdown. Lockdown had it's high points for sure, but really the only "good" match was Jarrett vs. Angle (I didn't see Pope vs. Joe and I heard that one was pretty good, so I suppose I could be wrong about there being only one good match). The Lethal Lockdown was fun, but it was by no means good wrestling. Wrestlemania, on the other hand, had Edge/Del Rio, Cody Rhodes/Rey Mysterio, CM Punk/Randy Orton, and Triple H/Undertaker as four good-great matches on the card.
Anyway, on to the real topic, I would say WWE is better year round, though it totally depends on which company you like better.
I think WWE puts more care into their cards than TNA. WWE generally gives their feuds more time to develop, they stretch them out longer (though TNA may be going for the longest feud ever with Angle vs Jarrett), and they take care of them better. I also think the WWE also knows how to work their card better. Using Lockdown as an example, TNA throws their three best matches at the top of the card. This seems logical (the main events should be closer to the main event, right?), but in reality you want to give the crowd a chance to rest between the hottest, most emotional matches of the night. Take a look at almost any WWE card and you'll see that they'll slide a diva's match or a tag match in between the main event matches to give the crowd a chance to recover.
And I just like WWE better, so of course I'm going to pick them. I like their wrestlers better, their stories better, I like almost everything the WWE does better than TNA, but that's not to say that TNA is bad (well, I think it is, but who am I to judge), it's just not for me.