Only the Pentecostals are saving souls in significant numbers
Oh really?
1. You're assuming everybody writhing on the floor in paroxysms, everybody drooling and barking at the end of a dog leash, or babbling, or anybody who got smacked by Benny Hinn is actually saved, any more than they're actually healed. Pretty big assumption. No, not pretty big, let's make that a huge assumption, a near astronomical assumption.
2. Historical, Protestant Christian missions well outnumber Pentecostal, Baptists, alone, almost twice the missions.
3. The Mormons and Jehovah's Witnesses far exceed Pentecostals in missionary work, I think exceed everybody, rope more of the unsuspecting than Pentecostals could dream, and they're also cults.
There are authentic and fake salvation experiences, true and false doctrines, cults spreading most rapidly of all. By your argument, Islam would be the true religion, since it's growing like wildfire. Anybody who goes to some "service" to participate in an emotional hoedown, to holy bark, laugh or babble, isn't necessarily even understanding of the gospel or a repentant Christian, at all. It's like everybody getting down with a Christian heavy metal band isn't necessarily saved: like babbling, convulsing to the rhythm isn't evidence of any salvation experience, is evidence of nothing, could even more readily be somebody under demonic control.
You overestimate the extent of Pentecostal missions, this just propaganda, even Mormons and other cults having far greater bragging rights, unless, of course, you should be associated with them. Speaking of cult status, if you're a good little Pentecostal, let's talk about how only those who babble are saved by your doctrine, how you believe water baptism necessary for salvation, baptism only in the name of Jesus Christ valid, baptism in the name of the Father, Son and Holy Ghost invalid, and let's talk about your Modalism that denies the preexistent God, Jesus Christ. Let's talk about your false prophets like John Scheppe. Let's talk about what earns Pentecostalism definitive, lying cult status, with doctrines of demons that contradict scripture. Let's talk about the crawly stuff under the rock and rot in the roots, what's whispered between you guys, like Adventists actually call others Sunday devils they, in public, wouldn't dare reveal what they really believe, of those not members of their cult.
Again, please don't go around copping to numbers as bragging rights, as the truth is that there are a whole lot more people deceived in this world than saved. The world chases cults and every sort of fake religion, the world chasing after your cult not a recommendation, if you stop to think about the straight and narrow way few find of scripture, think about some of your claims for two seconds that there is evidence of salvation in numbers, before posting what are just embarrassing arguments you, in fact, shoot yourself in the foot with. Tell me the world loves your religion, well, I'm here to tell you that's a huge red flag. That there are stadiums full of idiots, watching the Benny Hinn Religions Gone Wild and Money Grubbing Revue sort of makes the salvation in numbers argument plain dumb, doesn't it?
2 Timothy 4
1 I charge thee therefore before God, and the Lord Jesus Christ, who shall judge the quick and the dead at his appearing and his kingdom;
2 Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all longsuffering and doctrine.
3 For the time will come when they will not endure sound doctrine; but after their own lusts shall they
heap to themselves teachers, having itching ears;
4 And they shall turn away their ears from the truth, and shall be turned unto fables.