Why would I want to refuse a gift that Jesus gave when He ascended on high and gave gifts unto men (Ephesians 4:8)? Tongues was given at Pentecost and is a secure private channel that no enemy, devil, demon or even the NSA, can tap in to.
Ever wondered why you got the exact opposite of what you prayed for?
Well, if you use English, the enemy hears every word and tries to counter your moves. When you use tongues, he cannot hear or understand or intercept a thing and your prayers are heard and your plans not thwarted.
I see more movement from prayers in tongues than anything else. John G Lake said that tongues was the making of his ministry. Who am I to argue?